Nutritional Supplement Use by Dutch Elite and Sub-Elite Athletes: Does Receiving Dietary Counseling Make a Difference?

2017 ◽  
Vol 27 (1) ◽  
pp. 32-42 ◽  
Author(s):  
Floris C. Wardenaar ◽  
Ingrid J.M. Ceelen ◽  
Jan-Willem Van Dijk ◽  
Roland W.J. Hangelbroek ◽  
Lore Van Roy ◽  
...  
Keyword(s):  
Nutritional Supplements ◽  
Exercise Duration ◽  
Nutritional Supplement ◽  
Cross Sectional Study ◽  
Sport Nutrition ◽  
Dietary Counseling ◽  
Cross Sectional ◽  
Supplement Use ◽  
Elite Status ◽  
Almost All

The use of nutritional supplements is highly prevalent among athletes. In this cross-sectional study, we assessed the prevalence of nutritional supplement use by a large group of Dutch competitive athletes in relation to dietary counseling. A total of 778 athletes (407 males and 371 females) completed a web-based questionnaire about the use of nutritional supplements. Log-binomial regression models were applied to estimate crude and adjusted prevalence ratios (PR) for the use of individual nutritional supplements in athletes receiving dietary counseling as compared with athletes not receiving dietary counseling. Of the athletes, 97.2% had used nutritional supplements at some time during their sports career, whereas 84.7% indicated having used supplements during the last 4 weeks. The top ranked supplements used over the last 4 weeks from dietary supplements, sport nutrition products and ergogenic supplements were multivitamin and mineral preparations (42.9%), isotonic sports drinks (44.1%) and caffeine (13.0%). After adjustment for elite status, age, and weekly exercise duration, dietary counseling was associated with a higher prevalence of the use of vitamin D, recovery drinks, energy bars, isotonic drinks with protein, dextrose, beta-alanine, and sodium bicarbonate. In contrast, dietary counseling was inversely associated with the use of combivitamins, calcium, vitamin E, vitamin B2, retinol, energy drinks and BCAA and other amino acids. In conclusion, almost all athletes had used nutritional supplements at some time during their athletic career. Receiving dietary counseling seemed to result in better-informed choices with respect to the use of nutritional supplements related to performance, recovery, and health.

scholarly journals Investigation and Comparison of Nutritional Supplement Use, Knowledge, and Attitudes in Medical and Non-Medical Students in China

Nutrients ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1810 ◽  
Author(s):  
Hechun Liu ◽  
Yuexin Yang ◽  
Dengfeng Xu ◽  
Hui Xia ◽  
Da Pan ◽  
...  
Keyword(s):  
Health Status ◽  
Medical Students ◽  
Nutritional Supplements ◽  
Nutritional Supplement ◽  
Cross Sectional Study ◽  
Related Factors ◽  
Cross Sectional ◽  
Supplement Use ◽  
Knowledge And Attitudes ◽  
Level Of Knowledge

The objective of this study is to investigate and compare the prevalence, knowledge, and attitudes of Chinese university students with respect to nutritional supplements. We conducted a cross-sectional study in several universities around China from January to December 2017, and enrolled a total of 8752 students. Of these, 4252 were medical students and 4500 were non-medical students. The use of nutritional supplements was reported by 58.9% in universities students, with a higher rate for medical students as compared to non-medical students. It was found 24.2% of participants had taken supplements in the past year. Medical students had a higher level of knowledge on nutritional supplements than non-medical students (p < 0.001). The most commonly used nutritional supplements were vitamin C, calcium, and vitamin B. Gender (p < 0.001), household income (p < 0.001), and health status (p < 0.001) were related to the nutritional supplement use after adjustment for related factors. In conclusion, in China, nutritional supplement use was found to be more common in medical students than those studying other disciplines, and was associated with sex, income, and health status. The attitude towards nutritional supplements by medical students was positive. Students’ knowledge levels about nutritional supplements need to be improved

scholarly journals Attitudes towards nutritional supplement use amongst adult gymnasium users in Johannesburg North

2017 ◽  
Vol 29 (1) ◽  
pp. 1-5 ◽  
Author(s):  
X Mc Creanor ◽  
Y Coopoo ◽  
G Gabriels
Keyword(s):  
South Africa ◽  
Health Benefit ◽  
Nutritional Supplements ◽  
Nutritional Supplement ◽  
Normal Diet ◽  
Health And Wellness ◽  
Cross Sectional ◽  
Supplement Use ◽  
Statutory Body ◽  
Study Participants

Background: Nutritional supplements refer to a product ingested to increase the nutritional content of a normal diet, to fill a dietary need and/or presumed deficiency. The usage and popularity of nutritional supplements, however, raises concerns from a health benefit and risk perspective. In South Africa, there is currently no adequate regulatory framework of enforcement for nutritional supplement products and undeclared constituents by the statutory body, the Medicines Control Council (MCC). Education awareness programmes by organisations that should take consumer protection and the general public health and wellness as a right, needs to be improved. Objectives: To investigate the attitudes toward nutritional supplements by adult gym users from commercial gymnasiums in the Johannesburg North region of South Africa. Methods: A cross-sectional quantitative design, using a selfadministered questionnaire was applied to 364 recruited study participants who attended commercial gymnasiums in Johannesburg North. Results: One hundred and fifty users (41%) claimed that they ‘always’ read the information about the nutritional values, benefits, and side effects of the supplements on the labels prior to use. Three hundred and three users (83%) indicated that the number of users of nutritional supplements in gymnasiums is on the increase. Two hundred and seventy-three (75%) of main information sources for nutritional supplements may be found on the internet, while 292 (80%) indicated the need for gymnasiums to provide educational programmes pertaining to nutritional supplement consumption. Conclusion: Gymnasium users are aware of the increase in nutritional supplement use in commercial gymnasiums. Many of the users were unaware of the potential mislabelling and health concerns regarding these supplements. Therefore there is a need for improved nutritional supplement education programmes and diligence at multiple levels.

scholarly journals A cross-sectional study of 2550 amateur cyclists shows lack of knowledge regarding relevant sports nutrition guidelines

2018 ◽  
Vol 30 (1) ◽  
pp. 1-6
Author(s):  
D C Janse van Rensburg ◽  
I M Sparks ◽  
L Fletcher ◽  
A Jansen van Rensburg
Keyword(s):  
Online Survey ◽  
Nutritional Supplement ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Professional Advice ◽  
Sports Drink ◽  
Supplement Use ◽  
Nutrition Guidelines ◽  
Sports Drinks ◽  
Endurance Cycling

   Background: Amateur cyclists use a wide variety of supplements and nutritional substances to increase performance in addition to their training.  Objectives: The intended nutritional supplement use, carbohydrate (CHO) use and hydration practices of amateur cyclists before, during and after endurance cycling were analysed. Evidence of ignorance regarding the use of sports supplements and CHO, as well as the disregard of hydration strategy was hypothesised.  Methods: Amateur cyclists, of all age and sex groups, were requested to complete an online survey anonymously on the 2013 Momentum 94.7 Cycle Challenge website, a few days before the event.  Results: Responses were received from 2 550 out of 30 640 race entrants (8%); representing a distribution of 75% males, 25% females, with the majority between 25 to 45 years old. Nutritional supplements were used by 59% of respondents, with 77% dose adherence, and 29% with supplement ingredient knowledge. Half of the respondents (48%) planned to carbo-load two-three days before the event, while only five percent used professional advice to scientifically calculate their carbo-loading requirements. CHO were consumed by 81% during the event. Hydration preferences during the race were sports drinks (59%) and water (22%); and after the race 45% preferred a sports drink and 40% water. Ingredients, taste, colour, and temperature were criteria used to choose a sports drink. Only 18% of respondents knew to use both colour of urine and thirstiness to determine post-race fluid requirements.  Conclusion: The authors concluded that amateur cyclists had insufficient knowledge regarding nutritional supplement ingredients and usage, CHO requirements and carbo-loading practices, and hydration strategies before, during and after the event. 

Predictors of the Relationships Between Nutritional Supplement Use and Weight-Modification Goals of U.S. Army Soldiers

2013 ◽  
Vol 23 (4) ◽  
pp. 322-335 ◽  
Author(s):  
Krista G. Austin ◽  
Christina E. Carvey ◽  
Emily K. Farina ◽  
Harris R. Lieberman
Keyword(s):  
Weight Gain ◽  
Tobacco Use ◽  
Eating Habits ◽  
Nutritional Supplements ◽  
Energy Drinks ◽  
Nutritional Supplement ◽  
Sport Nutrition ◽  
Fitness Score ◽  
Supplement Use ◽  
Army Soldiers

Background:U.S. Army Soldiers must meet body weight and composition standards and consequently may use nutritional supplements (NS) purported to assist in weight modification (WM). Nutritional supplements are dietary supplements (DS) and foods intended to supplement the diet.Purpose:This study assessed relationships between NS use, demographic characteristics, health-related behaviors, and WM goals among U.S. Army personnel.Methods:Participants (N = 990) self-reported NS use, categorized as energy drinks, sport nutrition products, or DS, and WM goal (lose, gain, or maintain) was ascertained by survey. DS were subcategorized as health, weight-loss, weight-gain, or other DS. Chi-square and logistic regression were used to assess relationships between predictors, NS use, and WM goal. Most respondents (70.3% ± 1.7%) consumed some NS; however, overall NS use was not related to WM goal. Significant relationships were observed between predictors (tobacco use, age, body-mass index, fitness score, general health, and eating habits) and both WM goal and NS use. Respondents attempting to lose or maintain weight were less likely to consume energy drinks and weight-gain DS.Conclusion:WM goal is related to multiple health behaviors including tobacco use, physical fitness score, and self-perception of health and eating behavior. NS are consumed in this population regardless of WM goal.

scholarly journals Attitudes towards nutritional supplement use amongst adult gymnasium users in Johannesburg North

2017 ◽  
Vol 29 (1) ◽  
pp. 1-5
Author(s):  
X Mc Creanor ◽  
Y Coopoo ◽  
G Gabriels
Keyword(s):  
South Africa ◽  
Health Benefit ◽  
Nutritional Supplements ◽  
Nutritional Supplement ◽  
Normal Diet ◽  
Health And Wellness ◽  
Cross Sectional ◽  
Supplement Use ◽  
Statutory Body ◽  
Study Participants

Background: Nutritional supplements refer to a product ingested to increase the nutritional content of a normal diet, to fill a dietary need and/or presumed deficiency. The usage and popularity of nutritional supplements, however, raises concerns from a health benefit and risk perspective. In South Africa, there is currently no adequate regulatory framework of enforcement for nutritional supplement products and undeclared constituents by the statutory body, the Medicines Control Council (MCC). Education awareness programmes by organisations that should take consumer protection and the general public health and wellness as a right, needs to be improved. Objectives: To investigate the attitudes toward nutritional supplements by adult gym users from commercial gymnasiums in the Johannesburg North region of South Africa. Methods: A cross-sectional quantitative design, using a selfadministered questionnaire was applied to 364 recruited study participants who attended commercial gymnasiums in Johannesburg North. Results: One hundred and fifty users (41%) claimed that they ‘always’ read the information about the nutritional values, benefits, and side effects of the supplements on the labels prior to use. Three hundred and three users (83%) indicated that the number of users of nutritional supplements in gymnasiums is on the increase. Two hundred and seventy-three (75%) of main information sources for nutritional supplements may be found on the internet, while 292 (80%) indicated the need for gymnasiums to provide educational programmes pertaining to nutritional supplement consumption. Conclusion: Gymnasium users are aware of the increase in nutritional supplement use in commercial gymnasiums. Many of the users were unaware of the potential mislabelling and health concerns regarding these supplements. Therefore there is a need for improved nutritional supplement education programmes and diligence at multiple levels.

scholarly journals Nutritional supplements use, cost, source of information, and practices by Johannesburg North gym goers

2020 ◽  
Vol 32 (1) ◽  
pp. 6
Author(s):  
Gary Gabriels ◽  
Yoga Coopoo ◽  
Xavier Mc Creanor
Keyword(s):  
Risk Assessment ◽  
Body Image ◽  
Influencing Factor ◽  
Protein Body ◽  
Cost Benefit ◽  
Nutritional Supplements ◽  
Nutritional Supplement ◽  
Cross Sectional ◽  
Supplement Use ◽  
Benefit Risk Assessment

Background: Nutritional supplements are defined as any dietary supplement manufactured product that is generally intended to supplement the diet when taken by mouth as a pill, capsule, tablet, or liquid. Currently, the use of nutritional supplements is on the increase worldwide, predominantly in Western countries but also more recently expanding to other parts of the world for what has become a multibillion-dollar global industry. As a result, consumer demand has caused the increase in the advertising and marketing of these products. This contributes to early exposure to nutritional supplements by potential consumers and is an influencing factor for the use of performance-enhancing and/or appearance substances by adolescents. For the nutritional supplement industry the container is thus the manifestation of innovative ideas for the enterprising business-minded mogul. For the consumer, body image and ideal body discrepancy, and social influences manifest in the belief that the perfection of body development cannot be achieved without the use of nutritional supplements. This makes the consumer a captive audience for the industry and a challenge for the health care provider when suggesting alternatives to nutritional supplements, based on cost- benefit, and risk assessment. Objective: To determine the association between commercial gym goers and nutritional supplements, in particular the commencement of use, reasons and purpose for use, and the financial and risk implications of use. Methods: A self-administered questionnaire based on a cross-sectional quantitative design and systematic convenience sampling was given to the 364 recruited males and female gym goers. Results: This study’s finding shows that the main reasons why females attend gyms are for muscle gain (57%), weight loss (48%), staying healthy (47%), and a ‘spiritual motive’ (39%) In males, it is predominantly for muscle gain (54%). Protein supplements were the most popular products that were consumed (84%) followed by carbohydrates (72%) and vitamins (71%). It was found that the consumption of nutritional supplements often starts at high school age and continues into adulthood. The analysis shows that natural source protein products are better priced than nutritional supplement products. Conclusion: The study shows the importance of educating gym goers, the general public, and the guardians of minors to make a behaviour change towards nutritional supplement consumption. The change should also incorporate a cost-benefit risk assessment which is practical for the consumer when comparing supplement use as alternative sources of protein. Keywords: alternative protein, body image, cost, gender, spiritual motives

scholarly journals Intake of Nutritional Supplements among People Exercising in Gyms in Beirut City

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
D. El Khoury ◽  
S. Antoine-Jonville
Keyword(s):  
Side Effects ◽  
Performance Enhancement ◽  
Nutritional Supplements ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Herbal Supplements ◽  
Cross Sectional ◽  
Supplement Use ◽  
Gender And Age ◽  
Health Promoting

The use of nutritional supplements among exercisers in gyms has been never investigated in the Middle East. The aim of the current study was to assess the prevalence intake of nutritional supplements and the potential influencing factors among people exercising in gyms in Beirut city. In this cross-sectional study, 512 exercisers, aged between 20 and 50 years, were randomly selected from gyms. The intake of nutritional supplements was reported among 36.3% (95% confidence interval 32.2–40.5) of participants, with a weak presence of medical supervision. Patterns of supplement use differed by gender and age. Men and younger exercisers were found to focus on supplements associated with performance enhancement and muscle building, while women and older exercisers were more concerned with health-promoting products such as vitamins, minerals, and herbal supplements. An appropriate dissemination of accurate and scientifically sound information regarding the benefits and side effects of nutritional supplements is highly recommended in the sports environment in Beirut city.

Patient Use of Dietary Supplements, Home Monitoring, or Genetic Testing for Nonneovascular Age-Related Macular Degeneration

2021 ◽  
pp. 247412642198922
Author(s):  
Brittany C. Tsou ◽  
T.Y. Alvin Liu ◽  
Jun Kong ◽  
Susan B. Bressler ◽  
J. Fernando Arevalo ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Macular Degeneration ◽  
Dietary Supplements ◽  
Home Monitoring ◽  
Cross Sectional Study ◽  
Age Related Macular Degeneration ◽  
Cross Sectional ◽  
Supplement Use ◽  
Age Related ◽  
Disease Study

Purpose: This work evaluated the use and type of dietary supplements and home monitoring for nonneovascular age-related macular degeneration (AMD), as well as the prevalence of genetic testing among patients with AMD. Methods: A cross-sectional study was conducted of 129 participants older than 50 years who completed self-administered questionnaires regarding usage and type of dietary supplements and home monitoring, as well as the participants’ use of genetic testing for AMD. Results: Of 91 participants with AMD, 83 (91.2%) took vitamins, including 55 (60.4%) who used an Age-Related Eye Disease Study (AREDS) or AREDS2 formulation. Of 38 without AMD, 31 (81.6%) took vitamins (difference from participants with AMD = 9.6% [95% CI, 0%-23.2%]), including 2 on an AREDS formulation. Among 82 participants with AMD who were AREDS candidates (intermediate or advanced AMD in 1 or both eyes), 51 (62.2%; 95% CI, 51.7%-72.7%) took an AREDS or AREDS2 formulation, and 31 (37.8%) did not (5 were unsure). Additionally, 50 (61.0%; 95% CI, 50.4%-71.6%) AREDS candidates did some type of home monitoring. Only 1 (1.2%; 95% CI, 0%-3.6%) underwent genetic testing for AMD. Among 9 with AMD who were not AREDS candidates, 4 (44.4%) used an AREDS formulation, 4 (44.4%) did not, and 1 (11.1%) was unsure; only 1 (11.1%) of these 9 performed home monitoring. Conclusions: Despite similar results from past surveys and AREDS2 data supporting supplement use in 2013 and home monitoring in 2014, these findings suggest about one-third of AREDS candidates do not do so, providing further support for improving education regarding appropriate supplement and home monitoring usage. Genetic testing for AMD also appears infrequent.

scholarly journals Knowledge and Patterns of Dietary Supplement Use among Students Attending King Abdulaziz University in Saudi Arabia: A Cross-Sectional Study

2021 ◽  
Vol 58 ◽  
pp. 004695802110208
Author(s):  
Abdulraof Alqrache ◽  
Mostafa Mostafa ◽  
Omar Ghabrah ◽  
Ziyad Ghabrah ◽  
Nezar Kamal ◽  
...  
Keyword(s):  
Dietary Supplements ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Herbal Products ◽  
Supplement Use ◽  
King Abdulaziz University ◽  
Dietary Supplement Use ◽  
Harmful Effects ◽  
Selection Of

Oral dietary supplements (DSs) include vitamins, minerals, amino acids, energy drinks, and herbal products. The use of DSs is increasing and their manufacturers promote their benefits. Studies have validated some of these benefits, but have also indicated that some DSs can have adverse effects, especially if used without the appropriate supervision. Little information on DS use among Saudis is available. This study assessed the use of dietary supplements among male and female university students with the goal of educating the community about DSs and the dangers associated with their misuse. Online and paper validated questionnaires were administered to King Abdulaziz University (KAU) students between September 2019 and January 2020. The responses were collected and analyzed statistically. Of the 954 KAU students who completed the survey, one-third used DSs (42.9% women vs 25.7% men). Of these, 51.7% believed that DSs are essential for health, 41.7% classified them as both food and drugs, 67.2% were aware that DSs could not replace a healthy diet, and 25.8% were aware of their potentially harmful effects. Multivitamins and minerals were the most used DSs. DS awareness among KAU students is limited. Additional health education is necessary to assist students in their selection of the most suitable DSs.

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