Performance

Performance supplements include vitamins, minerals, herbs, amino acids as well as extracts and metabolites that are said to improve athletic ability, muscle strength and endurance (ergogenic aids), augment muscle growth (muscle protein synthesis), boost anabolic hormones like testosterone or growth hormone (HGH), reduce pain and fatigue, raise nitric oxide levels, modulate lactic acid levels or enhance male and/or female sexual prowess. Supplements may come in powders, capsules, gel caps bars or liquids and may be sold as individual ingredients or as part of multi-ingredient dietary supplements.