Elite athletes take vitamin supplements often in doses 100 times greater than the USRDA to improve performance, says a recent article in the International Journal of Vitamin Nutrition and Research.
The theoretical basis underlying the uses of each vitamin depends upon its specific metabolic function. Vitamin A helps night vision. Thiamine, riboflavin, niacin and pantothenic acid [...]

You’ve just joined a gym, you’ve been a couple of times and gone round the machines working out what they’re all for, you’ve even picked up the dumbbells to try and get an idea just how much you can handle.
The spotty 19 year old that’s just gained his HNC in Health and Fitness (Including Gym [...]