Author/Editor		Šelb, Julij; Lenasi, Helena
Title		Dietary supplements and sport performance - a comprehensive review
Type		članek
Vol. and No.		Letnik 1, št. 2
Publication year		2017
Volume		str. str. 33-45
Language		eng
Abstract		Aim : Comprehensive articles on dietary supplements and their impact on sport performance, which would provide professional and recreational athletes with evidence - based information, are sparse. Methods : Investiga tion involved eight different dietary supplements, commonly used among recreational and endurance athletes according to available literature obtained by searching the PubMed database, namely: Antioxidants, beta - alanine (B - alanine), branched - chain amino aci ds (BCAAs), caffeine, carbohydrates, creatine, nitric oxide/nitrates, and proteins . Their mechanisms of action have been briefly presented, along with their potential beneficial and harmful side effects and safety. Results : i.) Antioxidants : A sufficient a mount of antioxidants is available in a balanced diet ii.) B - alanine : Supplementation is likely to be beneficial in high - intensity exercises. iii.) BCAAs : No review articles in English were available iv.) Caffeine : Caffeine supplementation is beneficial in endurance exercises v.) Carbohydrates : Carbohydrate supplementation is probably beneficial in exercises lasting longer than one hour vi.) Creatine : Creatine supplementation is effective in high intensity, short - lasting exercise, while it does not seem to have any ergogenic effect in aerobic exercise. vii.) Nitric oxide/nitrates : Nitrate supplementation has a small but significant performance - enhancing effect, most apparently in situations of insufficient perfusion. viii.) Proteins : Protein supplementation, in combination with resistance exercise, most likely has beneficial effects on lean body mass and muscle strength. Conclusion : Most of the analyzed dietary supplements, if used for intended exercise regime, provide a kind of sport performance enhancement. On the other hand, long - term studies about their safety are mostly lacking.
Keywords		dietary supplements sport review prehranska dopolnila šport pregled