Vitamins play a big role in how our body works. Make sure you get them — from real food.
William D. McArdle, Frank I. Katch and Victor L. Katch, Exercise Physiology: Energy, Nutrition, and Human Performance, 6th ed (Baltimore: Lippincott Williams and Wilkins, 2007): 46.
Biological functions of vitamins. 1
Vitamins play a big role in how our body works. Make sure you get them — from real food.