Factors affecting nutritional knowledge, attitude, practices and dietary intake among national players in Kathmandu, Nepal: a cross-sectional study
BMC Sports Science, Medicine and Rehabilitation volume 15, Article number: 73 (2023)
Good nutrition knowledge and nutrient intake have been regarded as significant determinants in enhancing athletes’ performance and overall health status. This study aimed to assess knowledge, attitude, and practices of nutrition and dietary intake among athletes.
A cross-sectional study was conducted from January to April 2022 among national athletes from two sports clubs in Kathmandu Metropolitan City, Nepal. A semi-structured questionnaire was used to collect the data. Anthropometric measurements and dietary intake were recorded. Bivariate and multivariate binary logistic regression was used to estimate the crude odds ratios (cOR), and adjusted odds ratios (aOR) with 95% confidence intervals (CIs).
A total of 270 players were included in this study (mean age, 25 years; 49.6% male, 50.4% female). Almost half of the athletes had good nutrition knowledge [54.1% (146/270)], attitude [56.7% (153/270)], and practices [50% (135/270)] scores. The mean energy, carbohydrate, protein, and fat intake were 35.0 kcal/kg/day, 5.6, 0.9, and 0.9 g/kg/day, respectively. Likewise, mean calcium and iron intake were 370, and 12.5 mg, respectively. In the multivariate model, families with monthly household income less than 50,000 Nepalese rupees ($400) (adjusted Odds Ratio/aOR = 2.58; 95% CI: 1.12 to 5.96), and those who did not receive diet plan (aOR = 3.14; 95% CI: 1.25 to 7.84) were more likely to have poor nutrition knowledge. Players who did not check food labelling (aOR = 1.44; 95% CI: 0.78 to 2.63) were more likely to have negative attitude towards nutrition. Players who did not ever attend nutrition class (aOR = 3.54; 95% CI: 1.46 to 8.54) and those who did not consume different food during off and on the season of sports (aOR = 2.36; 95% CI: 1.39 to 4.01) were more likely to have poor nutrition practice.
Half of the athletes’ nutritional knowledge, attitudes, and practices score were satisfactory. Nutrient intake among athletes was suboptimal. Nutrition intervention programs are critical to improve nutritional knowledge, attitude and practice related to dietary intake among national athletes in Nepal.
Nutrition plays a significant role to lead a healthy lifestyle . Diet and lifestyle of athletes have an impact on their preparedness for competition, performance, and recovery . Athletes’ nutrition plans should contain provisions for sufficient nutrients to support in recovery as well as preparation for training and competition . Adequate nutrition supports training intensity, muscle recovery, and metabolic adaptations . Nutrition strategies help athletes perform optimally by reducing or delaying the factors that would otherwise cause fatigue .
Athletes’ knowledge on nutrition is a factor that can affect their eating habit . Athletes who have a good understanding of nutrition can recognize the need of training and perform at their best . Also, athletes with higher nutrition knowledge were more likely to consume more fruit, vegetables, and carbohydrate-rich foods than those with low nutrition knowledge . The association between nutrition knowledge and dietary behavior is multifaceted and influenced by many other individual and environmental factors such as hunger, appetite, taste, food preferences, beliefs, culture, and experiences [8,9,10]. When one has a complete understanding of nutrition, they tend to develop positive attitude towards nutrition. Positive nutrition attitude have been linked to better diets, promoting healthier food (higher healthy eating index), and nutrient dense foods in proper amount . Understanding the various nutrition related practice of athletes is important, as it influence energy consumption, nutrient intake, and hydration status . There are several recommendations related to nutrition suggested for athletes to boost their physical performance and maintain health by several organizations [13,14,15]. However, demanding training and travel schedules without proper nutritional knowledge can impair them from optimal dietary intake . Understanding the nutritional habits of athletes can help plan and implement appropriate nutrition education ultimately enhancing the knowledge and potentially influencing the nutrition practices of athletes .
Athletes are in need of adequate macro & micronutrients, and fluids including meal timing . For instances, meeting energy demand and maintenance of body mass and body fat at appropriate levels are key goals of nutrition , and are linked to poor knowledge on nutrition information which could ultimately lead to unhealthy eating practices [6, 19, 20].
Inadequate nutrition is also a key determinant for the high burden of injury among athletes . Most commonly observed was inadequate energy intake relative to exercise energy expenditure, which led to Relative Energy Deficiency in Sports (RED-S) . The International Olympic Consensus expert working group has introduced a broader, more comprehensive term for the condition previously known as ‘Female Athlete Triad’ . Female athlete triad stands for energy availability, menstrual function and bone health . Today, it is not limited among females and observed among males as well . The syndrome of RED-S is defined as “impairments of metabolic rate, menstrual function, bone health, immunity, protein synthesis, cardiovascular health, and other physiological functions, caused by relative energy deficiency” .
Limited number of studies were undertaken so far in sports nutrition in Nepal. A previous study conducted in Nepal investigated the association of nutritional knowledge, practice, supplement use, and nutrient intake with strength performance, however the study only looked at Taekwondo players . There is a lack of research on the understanding of nutrition, nutritional status, dietary intake, and sources of information among national-level athletes in Nepal. Despite studies conducted on the general population, this specific group (athletes) has not been studied yet. This study is designed to explore gaps and areas of knowledge deficits to inform the intervention. The main objective of this study was to assess nutrition knowledge, attitude, practices, and dietary intake among athletes and their interrelation.
Study design and setting
A cross-sectional study was conducted among 270 athletes from January 18, 2022, to April 10, 2022. Nepal Armed Police Force (APF) club and the Nepal Police club were selected purposively because both clubs are affiliated to Government of Nepal with a variety of sports teams and represent national level athletes. Male and female athletes between the ages of 18 and 40 were included in this study. Players suffering from severe injury, illness, players who were not present on the day of data collection, and players who were not willing to participate were excluded from the study.
Sample size, sampling strategy
A total sample size of 290 was estimated based on the single proportional formula n = Z2pq/d2; taking 50% proportion rate with α level of significance at 5%. In the formula, Z = standard normal deviation and equaled 1.96 at α level of significance; p is the prevalence of the outcome of interest which was set at 0.5 considering the unknown prevalence of nutritional knowledge or nutritional practice among national players in the study area; q = 1-p; and the margin error (d) was set at 6% and 10% non-response rate was added.
Convenience sampling was used to select the sports club. First, the Nepal APF Club and the Nepal Police club were selected purposively. After that list of total players from each club were retained by coordinating with authority of respective clubs. Consecutive sampling technique was used to collect data from all the available list of players, where the players were interviewed, and data was collected until the desired sample size was met.
Data collection tools and technique
A face-to-face interview was conducted using a semi-structured questionnaire. Socio demographic information, behavioral information, anthropometric measurement, nutrition knowledge, attitude, and practices information were collected. Socio demographic questionnaire were prepared based on the previous literature and revised appropriately for Nepalese context [25, 26]. Nutrition knowledge, attitude, practice (KAP) score questionnaires were developed based on the previously validated tools [25,26,27,28]. We approached the athletes in the morning for the data collection, as the training session was held in the morning every day, and we had the opportunity to meet the majority of them simultaneously. We collected participant’s anthropometric measurements, and information on dietary intake of athletes.
Data collection tool was developed in English language and then translated into the Nepali language and back-translated into the English language to ensure the validity of the questionnaire. Pretesting of the tool was carried among 30 players from another private club. Interviews were conducted at the respective club premises and each interview lasted for up to 40 minutes. Two trained enumerators who were studying Master of Science in Nutrition and Dietetics in their final year conducted the interviews. A field supervisor confirmed the quality of the data by cross verifying the completed questionnaire on-site, and any discrepancies were discussed with enumerators.
Information on participant’s age, sex, ethnicity, religion, education, monthly income, sources of information, duration of involvement in sports, sports category, daily training, previous training/classes history, and supplements use were collected. For age, two categories were made 18 to 24 years and above 24 years. Ethnicity was classified as Brahmin/Chhetri, Janajati, Dalit, Madhesi caste and others. For further analysis of education qualifications, we coded up to 10 class as “Secondary level and below” class 11–12 was coded as “Higher secondary” and the rest was coded as “Bachelor’s degree and above” Sports category was prepared referring to guidelines developed by International Life Sciences Institute India, National Institute of Nutrition and Sports Authority India . Educational qualification was coded as secondary level and below, higher secondary and bachelor’s and above. Monthly family income was further categorized as below 50,000 Nepalese rupees (NRs) ($400) and NRs 50,000 and above. Multiple response questions were included for sources of information related to nutrition, options to the question were books, articles, social media, coach/trainers, friends, newspaper, medical personnel, dietitian/nutritionist and others. The daily training period was categorized as less than three hours and more than three hours.
Height, weight, and body mass index (BMI) were calculated according to WHO classification . The anthropometric measurements including the weight and height of the participants were measured according to standardized procedures. Weight was measured to the nearest 0.1 kg using an Omron digital weighing. Height was measured in the standing position to the nearest 0.1 cm with a Seca 213 portable stadiometer. The BMI was calculated using weight (kg) divided by height squared (m2) and categorized using the WHO . Body composition measurement such as body fat (BF), visceral fat level (VFL), and skeletal muscle (SM) were measured using Bioelectrical Impedance Analysis (BIA). The BIA is a widely available, low-cost and non-X-ray-based method, and is used frequently to evaluate body composition . All participant’s body fat, visceral fat and skeletal muscle were measured in lightweight clothing and standing barefoot on the metal foot pads. To measure the bio-impedance, a very low, safe electrical signal was sent from four metal electrodes through the feet to the legs and abdomen. Participant’s information were recorded into the system to enable the calculating of the BIA algorithms, included gender, age, height and weight. Body fat percentage, visceral fat level, and skeletal muscle were recorded .
We used a pre-tested 24-hour dietary recall interview intended to capture detailed information about all foods and beverages consumed by the athletes in the past 24 h (from midnight to midnight the previous day). We enrolled all the athletes during their training time for the data collection. During 24-hour recall, the athletes were asked to name all the food and drink items consumed during the preceding day, including anything consumed outside the home and the time of consumption was also recorded. If multiple servings of the same food items were reported to be consumed in a single eating occasion, then these amounts were combined to a single portion. The portion size of items consumed was estimated using graduated measuring cylinder and standard weight for foods that are served as a unit (boiled egg, bread slice), as per the principle and guideline of the Indian Institute for Medical Research (ICMR). Based on the information obtained from the 24-hour dietary recall method, the amount of food was then converted into daily nutrient intakes. The mean daily intake of total calorie, carbohydrate, protein, fats, calcium, and iron over 24 h recalls was calculated accordingly using the Nutrition Society of India (NSI) diet calculator developed by the National Institute of Nutrition, Indian Council for Medical Research, Hyderabad, India. Along with it, for the items that were not listed in NSI diet calculator, food composition table of Nepal was used . The mean daily energy, protein, carbohydrate, and fat intake was compared with the values reported in the Nutrition and Hydration Guidelines for Excellence in Sports Performance, National Institute of Nutrition, India  and current American College of Sports Medicine (ACSM) sports nutrition guidelines .
Knowledge, attitude, practice (KAP) score questionnaire were adapted from previously published literature [25, 26]. The knowledge section had 28 statements which could be answered as ‘Yes’, ‘No’ and “don’t know”. Each correct response was coded as ‘1’ and the incorrect one as ‘0’. In the attitude section, there were a total of 16 statements, which could be answered on Likert scale ranging from “strongly agree” to “strongly disagree”. The scores ranged from “0–2”, where ‘2’ was the most positive and ‘0’ was the most negative. In the practice section, 14 statements were prepared with their response as ‘yes’ or ‘no’. Each positive response in this section was scored as ‘1’ and negative responses were scored as ‘0’. After scoring, the score for all of the answered questions for knowledge, attitude and practice was summed up separately. The higher score meant participants have good knowledge, practice, and positive attitude towards nutrition. To decide the individual as having poor or good knowledge score and practices and positive or negative attitude towards nutrition, the median score was used as the cutoff point since scores were not normally distributed. The questionnaire on nutrition knowledge, attitude, and practice have Cronbach alpha values of 0.80, 0.75, and 0.60, respectively.
Data management and analysis
Data checking and compiling was done manually to ensure completeness and accuracy before data were entered for analysis. The collected data were entered into EpiData software 3.1v and transferred into Stata/MP version 14.1 (StataCorp LP, College Station, Texas) for statistical analysis. The normality of the distribution of continuous variables was evaluated using the Shapiro wilk test. The descriptive results were presented in the form of mean, standard deviation, frequency, and percentage for normally distributed data and non-normally distributed data were expressed as median and interquartile range. Descriptive results were presented for nutrient intake.
Pearson’s chi-squared (χ2) test was applied for examining associations of categorical variables with knowledge, attitude, and practice score. Moreover, variables that lead to good or poor KAP scores were analyzed using bivariate and multivariate binary logistic regression. Results were presented as crude odds ratio (cOR) and adjusted odds ratio (aOR) with 95% confidence intervals (CIs). Associations with a p ≤ 0.20 in the bivariate analyses were included in the multivariate logistic regression models. P-values < 0.05 were considered statistically significant.
All methods of this study were carried out under the Declaration of Helsinki’s ethical principle for medical research involving human subjects . The ethical clearance for this study was obtained from the ethical review board of the Nepal Health Research Council (NHRC) (Reference number: 1829/2021). Formal permission was also obtained from the respective Clubs. The written informed consent was obtained from all eligible participants before proceeding with the data collection. Also, the data enumerators elaborated the objectives of the study among each athlete, and they were informed about voluntary participation, their right to refuse at any point, and the confidentiality of their identity.
Socio demographic characteristics
Of 290 participants, a total of 270 participants (male: 49.6%, and female: 50.4%) completed the study and the response rate was 93.1%. The mean (SD) age of players was 25.8 (4.2) years. More than half of respondents were Janajati (55.5%) followed by Brahmin/Chhetri (36.6%) ethnicity. Nutritional Assessment showed that most of the players (79.6%) had normal BMI, whereas 18% were overweight/obese. About body composition, the mean body fat, skeletal muscle and visceral fat of players were 25.7%, 30.4% and 5.4%, respectively. Half of respondents (50.3%) had an educational qualifications of higher secondary followed by secondary level (40.3%), and bachelor’s level and above (9.2%). Most of participants (79%) were playing team event sports such as football, cricket, volleyball, and Kabaddi, whereas 11% were reported from power events like weight lifting and 7% from light events like gymnastic. More than two-thirds of players (69.6%) reported performing less than three hours of training each day (Table 1).
Nutrition related information
Only 7.4% of athletes reported using dietary supplements. Also, most of them use whey protein supplement (75%) followed by multivitamin (25%). About 14% of participants have attended nutrition related class. More than half (55%) of players did not have any difference in food intake during the off and on season of sports event. In addition, almost 13% had been following diet plans and among them the source of plan was coach, followed by medical personnel, friends and social media. More than one-third (37%) reported checking food labelling before purchasing or consuming any food items, whereas 63% did not check the food labelling (Table 2).
The mean (SD) knowledge, attitude and practice score of participants were 19 (4.8) 11.5 (1.6), and 7.4 (2.1), respectively. More than half of the athletes had good nutrition knowledge [54.1% (146/270)], and attitude [56.7% (153/270)] scores, whereas half of players had practice [50% (135/270)] score (Table 2).
In this study, athletes relied more on coaches/trainers (24.9%), followed by social media (22.7%), friend circle (15.9%), medical professionals (13.3%) and books/newspaper/article (15%), whilst only 3% reported dietitian/nutritionist for nutrition related information (Fig. 1).
Nutrient intake among athletes
The median (IQR) energy intake was 2200 (1450) kcal. Median (IQR) protein intake relative to body weight per day was 0.9 (1)g and the fat intake was 0.9 (0.9)g relative to body weight per day (44.1)g. Similarly, median carbohydrate intake per kg body weight per day was 5.6 g. The median (IQR) percentage of carbohydrate, protein, and fat intake of the participants were 66% (17.1), 11.1% (8.9), and 22.6% (16.1), respectively. With regard to micronutrient intake, median calcium intake was 370 mg. Similarly, median iron intake was 12.5 mg.
Among the four sports category, median (IQR) energy intake was highest among team events, while least intake among power events. Related to protein intake, light event-players had highest intake, whereas intake was less among endurance event-players. Carbohydrate intake was highest among endurance event athletes and less intake were found among power events players. Power event-players had highest fat intake and endurance event-players had lowest fat intake (Table 3).
Nutritional knowledge attitude and practice
Older players (25–39 years) were shown to have good nutrition knowledge score. Both male and female had similar knowledge score. Among all, higher educational level players had better knowledge score than others. Players with more than Rs 50,000 ($400) monthly family income were having good knowledge score than those below Rs 50,000. Players who had attended nutrition class before had good knowledge score than those who reported not attending any classes before. Players who did not follow any diet plan had poor knowledge score than those who followed the plan. Also, players who checked food labelling were shown to have good knowledge than those who did not check. Players aged above 25 years had a positive nutrition attitude than below 25 years. Higher educational level players had a positive nutrition attitude than other educational qualifications. Players who checked food labelling had positive nutrition attitude than others. For practice score, players with secondary level educational qualification had better nutrition practice score than another educational group. Players with monthly family income above Rs 50,000 were having good practice score than those with low monthly income. Players who did not follow diet plan had poor nutrition practice score than those who followed. Also, Players who had different food intake on and off season had good nutrition practice score than those who had no difference. Also, those who checked food labelling had good practice score than those who did not check it (Table 4).
Association of determining factors with nutritional knowledge, attitude and practice among athletes
Bivariate analysis showed that athletes having monthly family income Rs 50,000 and below ($400) (crude Odds Ratio/cOR = 2.7, 95% CI: 1.25 to 5.82) and athletes who did not attend nutrition class before (cOR = 2.33, 95% CI: 1.10 to 4.91) were more likely to have poor nutrition knowledge score. Also, those who did not check food labelling (cOR = 2.44, 95% CI: 1.38 to 4.32) had higher odds of having negative attitude towards nutrition. Players who had never attended nutrition class (cOR = 4.53, 95% CI: 1.99 to 10.31) and those who didn’t had difference in food intake during off and on season (cOR = 2.5, 95% CI: 1.58 to 4.26) were more likely to have poor nutrition practice score (Table 5).
Multivariate logistic regression models indicated that athletes having monthly family income Rs 50,000 and below ($400) (adjusted Odds Ratio/aOR = 2.5, 95% CI: 1.12 to 5.96) and athletes not following diet plan compared to those following diet plan (aOR = 3.14, 95% CI: 1.25 to 7.84) were more likely to have poor nutrition knowledge score. Similarly, those who did not check food labelling (aOR = 1.44, 95% CI: 0.78 to 2.63) had higher odds of negative attitudes towards nutrition. Also, athletes who had never attended nutrition class (aOR = 3.54, 95% CI: 1.46 to 8.54) and those who did not have difference in food intake during off and on season (aOR = 2.36, 95% CI: 1.39 to 4.09) were more likely to have poor diet practice score (Table 5).
This study adds to the paucity of knowledge, attitude and practice related to athletes in Nepal. This is the first study to explore nutrition knowledge, attitude, practices, and dietary intake among players from a variety of sports. The findings of this study showed a half of the athletes had good knowledge, attitude, and practice related to nutrition. Total energy intake, protein, and fat intake were low according to the current recommendations for athletes.
In this study, more than half of respondents had good nutrition knowledge score which is consistent with the findings of previous study conducted in Bangladesh . This may be due to the similar environmental and socioeconomic background of players. However, in contrast to a prior study by Sunuwar et al. (2022) among Taekwondo players in Nepal, less than half of players had good nutrition knowledge and practice scores . Another study among Rugby players also revealed contrasting result . In our study, there was no significant difference in knowledge score among male and female athletes and similar findings were observed in other studies [36, 37]. Study conducted among sports trainee of Bangladesh showed significant association of gender with nutrition knowledge score, with males likely to have good nutrition knowledge score than females . Unadjusted model showed that those players who did not attend previous nutrition class were more likely to have poor nutrition knowledge.
Nutrition training can offer valuable information about healthy diet, nutrients, and various events’ meal necessary for the players. The primary source of information for nutrition were coaches and social media. Very few of them sought nutrition advice from a nutritionist/dietician. The result was consistent with another study, where most athletes preferred athletic trainers/coaches to dietitians to access nutrition information . Few research were conducted to assess nutrition knowledge among coaches & athletic trainers and it showed inadequate knowledge among them [37, 39]. Another study revealed that athletes perceived athletic trainers to have adequate nutrition knowledge . Moreover, there is lack of nutrition professional in the sports institution who can provide evidence-based nutrition knowledge even in developed nation, while institutions Nepal are unaware of the nutritionist/dietitian. To provide guidance to athletes, coaches and trainers with adequate authentic nutrition information are necessary .
Monthly family income and diet plan adherence was found significantly associated with nutrition knowledge score. Those players who had low income may not get access to relevant information source leaving them with poor knowledge. Those following diet plan may tend to inquire more about nutrition information and learn more than their counterparts. Regarding attitude, more than half respondents had shown positive attitude towards nutrition similar to recent study . Nutrition knowledge has significant association with attitude and this finding was supported by previous study . The prevalence of supplement use among players was 7.8% which was similar with recent study conducted among Taekwondo players in Nepal . Whereas, use of supplements was found to be higher in other studies conducted in Egypt  and Turkey . A study revealed that most common reasons for supplement use among athletes include a belief that the stress of intense training/competition cannot be met by food alone, and that supplements can offer a specific advantage in either training or competition .
Food labelling checking was associated with attitude score. Players who checked the food labelling tended to have positive attitude towards nutrition. Previous exposure to nutrition class/lecture also showed significant association with practices score and nutrition knowledge among athletes . Nutrition intervention also led to positive impact on dietary habit among adolescents, where they increased the frequency of meal and decreased the meal timing and focused on pre and post training meals  .
In the study, a total energy intake, protein, fat, calcium, and iron were significantly lower than the corresponding recommended dietary allowances. No athletes met the recommendations for energy intake in this study. Similar findings were observed in the previous study conducted among Australian football athletes and cross fit players [46, 47]. This may be due to hectic training schedule, travels, lack of adequate knowledge about diet quantity, and quality among them. An adequate energy intake supports optimal body function, determines the capacity for intake of macronutrients and micronutrients, and assists in manipulating body composition in athlete .
With related carbohydrate intake, all athletes met carbohydrate recommendations which is consistent with the previous study . Carbohydrates are the main source of energy in athletes’ diets. Athletes require an adequate intake of carbohydrates in order to build up muscle glycogen reserves and thus provide the necessary energy for muscle work . The median carbohydrate intake for endurance was in line with the the recommendations suggested by International life sciences Institute, National Institute of Nutrition and Sport Authority of India . This result is consistent with results from Sunuwar et al. (2022)  and Ali A et al. (2015) .
The median fat intake of athletes was 22.6% with individual median intake of endurance, light events and team events 20.5%, 23.4% and 22.5%, respectively. The median intake of calcium and iron for athletes was 370 mg and 12.5 mg, respectively. Majority of athletes fails to meet the RDA of Calcium (1000 mg). These findings are consistent with previous studies [7, 25] which showed inadequate intake of calcium and iron. Adequate calcium is necessary throughout the life to optimize bone health which if compromised, can lead to bone stress injuries and early osteoporosis [50,51,52]. Iron is crucial mineral used by the body for numerous processes such as oxygen transport and energy production at a cellular level. Intake of iron by study participants was similar to the findings from the cross sectional study conducted by Pate et al. (2022) . Also, the mean body fat, skeletal muscle, and visceral fat of players were 25.7%, 30.4% and 5.4%, respectively, which is higher than previous studies [54, 55]. This could be due to inter population variability of body compositions and tools used for measurement.
Our study had a few limitations. 24-hour dietary recall was used to calculate dietary intake which may have incurred recall bias. We only included calcium and iron as micronutrient intake, despite the fact that additional minerals and vitamins are crucial to human health and nutritional status. Since the information was collected through face-to-face using a structured questionnaire, response preference to some nutrition issues may have led to social desirability bias. Similarly, data collection timing may have affected the results as some athletes were on preparatory phase and some on competition phase. Similarly, for body composition assessment, we used Bioelectrical Impedance Analysis (BIA), which may overestimate the body fat percentage. Despite the above noted shortcomings, our study has several strengths. This study examined a wide range of sports categories that included national athletes and reflected overall nutritional knowledge, attitudes, practices, and nutrient intake among athletes in Nepal. The association between nutritional knowledge, attitude, practice, and many variables was thoroughly analyzed in our study. The findings of this study can be used as a guideline to enhance the dietary guidelines for all kinds of players in Nepalese context.
Half of the players had good nutrition knowledge, practice and attitude scores. Dietary intake among players were below the recommendations of sports guidelines. Family income and who followed diet plan were found to have good nutrition knowledge score. Those athletes who attended nutrition class, and consumed food according to off and on season was found significantly associated with good practice score. More studies with wider population are needed to identify robust relationship of various factors with KAP and dietary intake. Also, Study focusing among coaches and trainers can be carried out to know the level of nutrition knowledge among them.
Dataset used in this study is available upon reasonable request to the corresponding author.
Crowley J, Ball L, Hiddink GJ. Nutrition in medical education: a systematic review. Lancet Planet Heal. 2019;3:e379–89. https://doi.org/10.1016/S2542-5196(19)30171-8
Devrim-Lanpir A, Hill L, Knechtle B. Efficacy of Popular Diets Applied by endurance athletes on Sports performance: beneficial or detrimental? Narrative Rev Nutrients. 2021;13:1–40. https://doi.org/10.3390/NU13020491
Janiczak A, Devlin B, Forsyth A, Trakman G. A systematic review update of athletes’ nutrition knowledge and association with dietary intake. Br J Nutr. 2021 [cited 11 Aug 2022]. https://doi.org/10.1017/S0007114521004311
Juzwiak CR. Reflection on sports nutrition: where we come from, where we are, and where we are headed. Rev Nutr. 2016;29:435–44. https://doi.org/10.1590/1678-98652016000300013
Thomas DT, Erdman KA, Burke LM. Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and athletic performance. J Acad Nutr Diet. 2016;116:501–28. https://doi.org/10.1016/j.jand.2015.12.006
Klein DJ, Eck KM, Walker AJ, Pellegrino JK, Freidenreich DJ. Assessment of sport nutrition knowledge, dietary practices, and sources of nutrition information in ncaa division iii collegiate athletes. Nutrients. 2021;13. https://doi.org/10.3390/nu13092962
Condo D, Lohman R, Kelly M, Carr A. Nutritional intake, sports nutrition knowledge and energy availability in female australian rules football players. Nutrients. 2019;11:1–13. https://doi.org/10.3390/nu11050971
Birkenhead KL, Slater G. A review of factors influencing athletes’ Food Choices. Sport Med 2015 4511. 2015;45:1511–22. https://doi.org/10.1007/S40279-015-0372-1
Spronk I, Kullen C, Burdon C, O’Connor H. Relationship between nutrition knowledge and dietary intake. Br J Nutr. 2014;111:1713–26. https://doi.org/10.1017/S0007114514000087
Heaney S, O’Connor H, Michael S, Gifford J, Naughton G. Nutrition knowledge in athletes: a systematic review. Int J Sport Nutr Exerc Metab. 2011;21:248–61. https://doi.org/10.1123/IJSNEM.21.3.248
Aggarwal A, Monsivais P, Cook AJ, Drewnowski A. Positive attitude toward healthy eating predicts higher diet quality at all cost levels of supermarkets. J Acad Nutr Diet. 2014;114:266–72. https://doi.org/10.1016/J.JAND.2013.06.006
Ziegler PJ, Jonnalagadda SS, Lawrence C, Baciak B, Nelson JA. Contribution of meals and snacks to nutrient intake of male and female elite figure skaters during peak competitive season. J Am Coll Nutr. 2002;21:114–9. https://doi.org/10.1080/07315724.2002.10719203
Vitale K, Getzin A, Nutrition, Supplement Update for the Endurance Athlete. Rev Recommendations Nutr 2019. 2019;11:11: 1289. https://doi.org/10.3390/NU11061289
Jäger R, Kerksick CM, Campbell BI, Cribb PJ, Wells SD, Skwiat TM, et al. International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14. https://doi.org/10.1186/S12970-017-0177-8
Kerksick CM, Arent S, Schoenfeld BJ, Stout JR, Campbell B, Wilborn CD, et al. International society of sports nutrition position stand: nutrient timing. J Int Soc Sports Nutr. 2017;14. https://doi.org/10.1186/S12970-017-0189-4
Economos CD, Bortz SS, Nelson ME. Nutritional Practices of Elite athletes: practical recommendations. Sport Med Eval Res Exerc Sci Sport Med. 1993;16:381–99. https://doi.org/10.2165/00007256-199316060-00004
Devlin BL, Belski R. Exploring General and Sports Nutrition and Food Knowledge in Elite male australian athletes. Int J Sport Nutr Exerc Metab. 2015;25:225–32. https://doi.org/10.1123/IJSNEM.2013-0259
Manore MM. Weight management for athletes and active individuals: a brief review. Sports Med. 2015;45:83. https://doi.org/10.1007/S40279-015-0401-0
Werner EN, Guadagni AJ, Pivarnik JM. Assessment of nutrition knowledge in division I college athletes. J Am Coll Health. 2020. https://doi.org/10.1080/07448481.2020.1740234. [cited 12 Feb 2022].
Escribano-Ott I, Mielgo-Ayuso J, Calleja-González J. A glimpse of the sports nutrition awareness in spanish basketball players. Nutrients. 2022;14. https://doi.org/10.3390/nu14010027
Close GL, Baar K, Sale C, Bermon S. Nutrition for the Prevention and Treatment of Injuries in Track and Field athletes. Int J Sport Nutr Exerc Metab. 2019;29:189–97. https://doi.org/10.1123/IJSNEM.2018-0290
Statuta SM, Asif IM, Drezner JA. Relative energy deficiency in sport (RED-S). Br J Sports Med. 2017;51:1570–1. https://doi.org/10.1136/bjsports-2017-097700
Mountjoy M, Sundgot-Borgen J, Burke L, Carter S, Constantini N, Lebrun C, et al. The IOC consensus statement: beyond the Female Athlete Triad–Relative Energy Deficiency in Sport (RED-S). Br J Sports Med. 2014;48:491–7. https://doi.org/10.1136/BJSPORTS-2014-093502
Ackerman KE, Holtzman B, Cooper KM, Flynn EF, Bruinvels G, Tenforde AS, et al. Low energy availability surrogates correlate with health and performance consequences of relative Energy Deficiency in Sport. Br J Sports Med. 2019;53:628–33. https://doi.org/10.1136/bjsports-2017-098958
Sunuwar DR, Singh DR, Bohara MP, Shrestha V, Karki K, Pradhan PMS. Association of nutrition knowledge, practice, supplement use, and nutrient intake with strength performance among Taekwondo players in Nepal. Front Nutr. 2022;0:2780. https://doi.org/10.3389/FNUT.2022.1004288
Bakhtiar M, Masud-ur-Rahman M, Kamruzzaman M, Sultana N, Rahman SS. Determinants of nutrition knowledge, attitude and practices of adolescent sports trainee: a cross-sectional study in Bangladesh. Heliyon. 2021;7. https://doi.org/10.1016/J.HELIYON.2021.E06637
Ozdoǧan Y, Ozcelik AO. Evaluation of the nutrition knowledge of sports department students of universities. J Int Soc Sports Nutr. 2011;8:1–7. https://doi.org/10.1186/1550-2783-8-11/TABLES/1
Furber MJW, Roberts JD, Roberts MG. A valid and reliable nutrition knowledge questionnaire for track and field athletes. BMC Nutr. 2017;3:1–7. https://doi.org/10.1186/S40795-017-0156-0/TABLES/5
2007. Available: http://www.ilsi-india.org/PDF/International Life Sciences Institute India, National Institute of Nutrition, Sports Authority of India. Nutrition and Hydration Guidelines for Excellence in Sports Performance, Conf. recommendations/Nutrition/Nutrition & Hyd. Guidelines for Athletes Final report.pdf.
World Health Organization (WHO). WHO Physical status: The use of and interpretation of anthropometry. Report of a WHO Expert Consultation. Geneva: World Health Organization. 1995. Available: https://apps.who.int/iris/bitstream/handle/10665/37003/WHO_TRS_854.pdf?sequence=1
Vasold KL, Parks AC, Phelan DML, Pontifex MB, Pivarnik JM. Reliability and validity of commercially available low-cost Bioelectrical Impedance Analysis. Int J Sport Nutr Exerc Metab. 2019;29:406–10. https://doi.org/10.1123/IJSNEM.2018-0283
Xu Z, Liu Y, Yan C, Yang R, Xu L, Guo Z, et al. Measurement of visceral fat and abdominal obesity by single-frequency bioelectrical impedance and CT: a cross-sectional study. BMJ Open. 2021;11:e048221. https://doi.org/10.1136/BMJOPEN-2020-048221
Department of Food Technology and Quality Control, National Nutrition Program. Food Composition Tabel For Nepal. 2012. Available: http://www.dftqc.gov.np/uploads/files/Food Composition table.pdf
World Medical Association. Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013;310:2191–4. https://doi.org/10.1001/JAMA.2013.281053
Alaunyte I, Perry JL, Aubrey T. Nutritional knowledge and eating habits of professional rugby league players: does knowledge translate into practice? J Int Soc Sports Nutr. 2015;12. https://doi.org/10.1186/S12970-015-0082-Y
Sedek R, Yih TY. Dietary habits and nutrition knowledge among athletes and non-athletes in National University of Malaysia (UKM). Pakistan J Nutr. 2014;13:752–9. https://doi.org/10.3923/PJN.2014.752.759
Burns RD, Schiller MR, Merrick MA, Wolf KN. Intercollegiate student athlete use of nutritional supplements and the role of athletic trainers and dietitians in nutrition counseling. J Am Diet Assoc. 2004;104:246–9. https://doi.org/10.1016/J.JADA.2003.11.013
Torres-McGehee TM, Pritchett KL, Zippel D, Minton DM, Cellamare A, Sibilia M. Sports Nutrition Knowledge among Collegiate athletes, coaches, athletic trainers, and strength and conditioning specialists. J Athl Train. 2012;47:205–11. https://doi.org/10.4085/1062-6050-47.2.205
Jovanov P, Đorđić V, Obradović B, Barak O, Pezo L, Marić A, et al. Prevalence, knowledge and attitudes towards using sports supplements among young athletes. J Int Soc Sports Nutr. 2019;16. https://doi.org/10.1186/S12970-019-0294-7
DT T, KA E. American College of Sports Medicine Joint position Statement. Nutrition and athletic performance. Med Sci Sports Exerc. 2016;48:543–68. https://doi.org/10.1249/MSS.0000000000000852
Tawfik S, El Koofy N, Moawad EMI. Patterns of Nutrition and Dietary supplements use in young egyptian athletes: A Community-Based cross-sectional survey. PLoS ONE. 2016;11. https://doi.org/10.1371/JOURNAL.PONE.0161252
Seyhan S. Evaluation of the Use of Nutrition Support Products in Taekwondo athletes. J Educ Learn. 2018;7:222. https://doi.org/10.5539/JEL.V7N6P222
Garthe I, Maughan RJ. Athletes and supplements: prevalence and perspectives. Int J Sport Nutr Exerc Metab. 2018;28:126–38. https://doi.org/10.1123/IJSNEM.2017-0429
Webb MC, Beckford SE. Nutritional knowledge and attitudes of adolescent swimmers in Trinidad and Tobago. J Nutr Metab. 2014;2014. https://doi.org/10.1155/2014/506434
Nascimento M, Silva D, Ribeiro S, Nunes M, Almeida M, Mendes-Netto R. Effect of a nutritional intervention in Athlete’s body composition, eating Behaviour and Nutritional Knowledge: a comparison between adults and adolescents. Nutrients. 2016;8. https://doi.org/10.3390/NU8090535
Jenner SL, Trakman G, Coutts A, Kempton T, Ryan S, Forsyth A, et al. Dietary intake of professional australian football athletes surrounding body composition assessment. J Int Soc Sport Nutr 2018 151. 2018;15:1–8. https://doi.org/10.1186/S12970-018-0248-5
Gogojewicz A, Śliwicka E, Durkalec-Michalski K. Assessment of Dietary Intake and Nutritional Status in CrossFit-Trained individuals: a descriptive study. Int J Environ Res Public Health. 2020;17:1–13. https://doi.org/10.3390/IJERPH17134772
Heydenreich J, Kayser B, Schutz Y, Melzer K. Total energy expenditure, Energy Intake, and body composition in endurance athletes across the training season: a systematic review. Sport Med - Open. 2017;3. https://doi.org/10.1186/S40798-017-0076-1
Ali A, Al-Siyabi MS, Waly MI, Kilani HA. Assessment of nutritional knowledge, dietary habits and nutrient intake of university student athletes. Pakistan J Nutr. 2015;14:293–9. https://doi.org/10.3923/PJN.2015.293.299
Warden SJ, Davis IS, Fredericson M. Management and prevention of bone stress injuries in long-distance runners. J Orthop Sports Phys Ther. 2014;44:749–65. https://doi.org/10.2519/JOSPT.2014.5334
Goolsby MA, Boniquit N. Bone health in athletes: the role of Exercise, Nutrition, and hormones. Sports Health. 2017;9:108–17. https://doi.org/10.1177/1941738116677732
Chaudhary NK, Timilsena MN, Sunuwar DR, Pradhan PMS, Sangroula RK. Association of Lifestyle and Food Consumption with Bone Mineral density among people aged 50 years and above attending the Hospitals of Kathmandu, Nepal. J Osteoporos. 2019;2019:1–6. https://doi.org/10.1155/2019/1536394
Alaunyte I, Stojceska V, Plunkett A. Iron and the female athlete: a review of dietary treatment methods for improving iron status and exercise performance. J Int Soc Sports Nutr. 2015;12:1. https://doi.org/10.1186/S12970-015-0099-2
Sansone P, Makivic B, Csapo R, Hume P, Martínez-Rodríguez A, Bauer P. Body Fat of Basketball Players: a systematic review and Meta-analysis. Sport Med - open. 2022;8. https://doi.org/10.1186/S40798-022-00418-X
Lozano Berges G, Matute Llorente Á, Gómez Bruton A, González Agüero A, Vicente Rodríguez G, Casajús JA. Body fat percentage comparisons between four methods in young football players: are they comparable? Nutr Hosp. 2017;34:1119–24. https://doi.org/10.20960/NH.760
We would like to thank all the participants who participated in this study. We express our gratitude to all coaches and members of the Nepal APF club and Nepal Police club for their kind cooperation in undertaking this research. We are grateful to Dr. Bipin Adhikari affiliated to Nuffield Department of Medicine, University of Oxford, United Kingdom for his thoughtful review, suggestions and proofreading of the manuscript.
This research received special support from Baliyo Nepal Nutrition Initiative (Grant number: 010-2078-79). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Ethical approval and consent to participants
All methods of this study were carried out under the Declaration of Helsinki’s ethical principle for medical research involving human subjects. The ethical clearance for this study was obtained from the Institutional Review Board (IRB) at the Nepal Health Research Council (Reference number: 1829/2021). Formal permission was also obtained from the respective Clubs. The written informed consent was obtained from all eligible participants before proceeding with the data collection. Also, the data enumerators elaborated the objectives of the study among each athlete, and they were informed about voluntary participation, their right to refusal at any point, and the confidentiality of their identity.
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Thapa, M., Neupane, A., Shrestha, S.K. et al. Factors affecting nutritional knowledge, attitude, practices and dietary intake among national players in Kathmandu, Nepal: a cross-sectional study. BMC Sports Sci Med Rehabil 15, 73 (2023). https://doi.org/10.1186/s13102-023-00691-7
- Nutrition knowledge
- Dietary intake
- National players