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Table 5 Other potential ergogenic nutrients contained in energy drinks that may affect performance

From: International Society of Sports Nutrition position stand: energy drinks

Ingredient Potential ergogenic value Scientific support
Panax Ginseng Contains ginsenosides which are purported to have anti-inflammatory, antioxidant, and anticancer effects. Purported to enhance perceptions of energy, increase stamina and improve nitrogen balance [96]. Most well-controlled research does not support the ergogenic effects for ginseng [97111]. No known effects at dosages found in ED and ES.
L-Carnitine Involved in shuttling long chain fatty acids into mitochondria. Purported to promote lipolysis [112]. Limited supportive ergogenic value in athletes or on weight loss [112]. No known effects at dosages found in ED and ES.
D-Ribose Involved in ATP synthesis. Theoretically, D-ribose supplementation can increase ATP availability. Some evidence of improved exercise capacity in clinical populations [113] but limited evidence that high dose ribose supplementation affects exercise capacity [114119]. No known effects at dosages found in ED and ES.
Beta Alanine Increases muscle carnosine levels, increases muscle buffering, and attenuates fatigue during high intensity exercise [120124]. Growing scientific evidence of improved anaerobic capacity (2-4 g/d) [125138]. No known effects at dosages found in ED and ES.
Inositol Carbohydrate that is not classified as sugar. Involved in insulin signaling, nerve transmission, serotonin modulation, and fat oxidation [139]. No known effects at dosages found in ED or ES.
Citrulline Malate Optimizes blood flow via arginine-nitric oxide pathway; purported to reduce fatigue and buffer acidity during exercise [140, 141]. Some evidence that high dosages (e.g., 6 – 8 g) can affect exercise capacity and/or anabolism [142149]. No known effects at dosages found in ED and ES.
Quercetin Reported to have antioxidant, anti-inflammatory, antiviral, and immune-modulatory effects [150]. Several studies indicate that Quercetin supplementation (e.g., 1 g/d for 7 d) increases maximal aerobic capacity and time to fatigue [151166]. No known effects at dosages found in ED or ES.