Vitamin C reduces fatigue and perception of effort after exercise

In this interesting study on twenty obese adults, each were given either 500 mg of vitamin C or placebo daily for four weeks. Their diet was strictly controlled for vitamin C content and their heart rates and fatigue scores as well as subjective perceptions of exertion were measured after exercise. Those taking vitamin C had lower fatigue scores and those on placebo had higher fatigue scores. Heart rates and “ratings of perceived exertion” were also improved in the vitamin C group. (Nutrition, January 2013)