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      Use of Dietary Supplements among Professional Athletes in Saudi Arabia

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          Abstract

          The objective of this study was to understand the usage patterns of dietary supplements among professional athletes in Saudi Arabia. The survey consisted of sixteen questions divided into four categories: use of supplements, reason for consumption of supplements, personal beliefs about supplements, and behavior. The questionnaires were given to the three teams residing in Riyadh: Al Hilal, Al Nasr, and Al-Shabab. Out of the 105 athletes surveyed, we found that only 98 are currently taking dietary supplements and the mean age and standard deviation were 25.74 ± 2.90. The survey results showed a high percentage of athletes (93.3%; n = 98) using different dietary supplements throughout the season, 43.8% ( n = 43) reported using supplements for performance, and 32.6% ( n = 32) believed in health benefits as a reason for using dietary supplements. Our results showed that a total of 87 (88.7%), 81 (82.6%), and 51 (52.0%) athletes are consuming sports drinks, vitamin C, and multivitamins, respectively. Meanwhile, those supplements ranking among the least used included omega 6 (18.6%), creatine (16.3%), and Ginkgo biloba (10.2%). A majority of athletes indicated that their use of supplements was for the purpose of improving their health and performance.

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          Nutritional supplement use among college athletes and their sources of information.

          Kathryn Froiland, Wanda Koszewski, Joshua Hingst … (2004)
          A survey was conducted to examine the source of information and usage of nutritional supplements in 115 male and 88 female varsity athletes at a Division I university. The survey asked each athlete to define supplement, and report supplement use and type, source of information, and reasons for use. Supplement use frequencies were determined, and comparisons were made between gender and sport. Eighty-nine percent of the subjects had or were currently using nutritional supplements. Many athletes did not consider sports drinks and calorie replacement products as supplements. Females were more likely to take calcium and multivitamins, and males had significant intake for ginseng, amino acids, glutamine, hydroxy-methyl-buterate (HMB), weight gainers, whey protein, and Juven. The most frequently used supplements overall were energy drinks (73%), calorie replacement products of all types (61.4%), multivitamin (47.3%), creatine (37.2%), and vitamin C (32.4%). There was also significant supplement use noted per sport. Females were more likely to obtain information from family members regarding supplementation, and males from a store nutritionist, fellow athletes, friends, or a coach. Female athletes were more likely to take supplements for their health or because of an inadequate diet, while men reported taking supplements to improve speed and agility, strength and power, or for weight/muscle gain.
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            Dietary supplements and team-sport performance.

            David John Bishop (2010)
            A well designed diet is the foundation upon which optimal training and performance can be developed. However, as long as competitive sports have existed, athletes have attempted to improve their performance by ingesting a variety of substances. This practice has given rise to a multi-billion-dollar industry that aggressively markets its products as performance enhancing, often without objective, scientific evidence to support such claims. While a number of excellent reviews have evaluated the performance-enhancing effects of most dietary supplements, less attention has been paid to the performance-enhancing claims of dietary supplements in the context of team-sport performance. Dietary supplements that enhance some types of athletic performance may not necessarily enhance team-sport performance (and vice versa). Thus, the first aim of this review is to critically evaluate the ergogenic value of the most common dietary supplements used by team-sport athletes. The term dietary supplements will be used in this review and is defined as any product taken by the mouth, in addition to common foods, that has been proposed to have a performance-enhancing effect; this review will only discuss substances that are not currently banned by the World Anti-Doping Agency. Evidence is emerging to support the performance-enhancing claims of some, but not all, dietary supplements that have been proposed to improve team-sport-related performance. For example, there is good evidence that caffeine can improve single-sprint performance, while caffeine, creatine and sodium bicarbonate ingestion have all been demonstrated to improve multiple-sprint performance. The evidence is not so strong for the performance-enhancing benefits of β-alanine or colostrum. Current evidence does not support the ingestion of ribose, branched-chain amino acids or β-hydroxy-β-methylbutyrate, especially in well trained athletes. More research on the performance-enhancing effects of the dietary supplements highlighted in this review needs to be conducted using team-sport athletes and using team-sport-relevant testing (e.g. single- and multiple-sprint performance). It should also be considered that there is no guarantee that dietary supplements that improve isolated performance (i.e. single-sprint or jump performance) will remain effective in the context of a team-sport match. Thus, more research is also required to investigate the effects of dietary supplements on simulated or actual team-sport performance. A second aim of this review was to investigate any health issues associated with the ingestion of the more commonly promoted dietary supplements. While most of the supplements described in the review appear safe when using the recommended dose, the effects of higher doses (as often taken by athletes) on indices of health remain unknown, and further research is warranted. Finally, anecdotal reports suggest that team-sport athletes often ingest more than one dietary supplement and very little is known about the potential adverse effects of ingesting multiple supplements. Supplements that have been demonstrated to be safe and efficacious when ingested on their own may have adverse effects when combined with other supplements. More research is required to investigate the effects of ingesting multiple supplements (both on performance and health).
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              Intercollegiate student athlete use of nutritional supplements and the role of athletic trainers and dietitians in nutrition counseling.

              Robert Burns, M.Rosita Schiller, Mark A Merrick … (2004)
              A survey of university student athletes was conducted to determine supplement use, perceived efficacy of supplements, availability and use of nutrition services, and perceived nutrition knowledge of athletic trainers. Results from 236 athletes showed that 88% used one or more nutritional supplements, yet perceived efficacy was moderate (2.9 or less; 5-point scale). Classes (69.4%), brochures (75%), and individual counseling (47%) were available and were used by 29.9%, 33.2%, and 17.9% of athletes, respectively. Primary sources of nutrition information were athletic trainers (39.8%), strength and conditioning coaches (23.7%), and dietitians (14.4%). Athletes perceived athletic trainers to have strong nutrition knowledge (mean=3.8+/-0.9; 5-point scale). Many (23.5%) did not know whether a dietitian was available. Dietitians must accelerate their marketing efforts to student athletes, work closely with athletic trainers to provide sound nutrition information, and provide services that meet the needs of a diverse population of student athletes.
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Nutr Metab
                Journal ID (iso-abbrev): J Nutr Metab
                Journal ID (publisher-id): JNUME
                Title: Journal of Nutrition and Metabolism
                Publisher: Hindawi Publishing Corporation
                ISSN (Print): 2090-0724
                ISSN (Electronic): 2090-0732
                Publication date (Print): 2013
                Publication date (Electronic): 26 May 2013
                Volume: 2013
                Electronic Location Identifier: 245349
                Affiliations
                1Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi Arabia
                2Food Microbiology Laboratory, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
                Author notes
                *Salam A. Ibrahim: ibrah001@ 123456ncat.edu

                Academic Editor: Cindy Davis

                Article
                DOI: 10.1155/2013/245349
                PMC ID: 3677665
                PubMed ID: 23762541
                SO-VID: 50e9d497-501e-43b0-8491-d69f81b84cd7
                Copyright © Copyright © 2013 S. O. Aljaloud and S. A. Ibrahim.
                License:

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 25 February 2013
                Date revision received : 29 March 2013
                Date accepted : 9 April 2013
                Categories
                Subject: Research Article

                ScienceOpen disciplines: Nutrition & Dietetics
                Data availability:
                ScienceOpen disciplines: Nutrition & Dietetics

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