Other authorities on the performance-enhancing supplement subject do not believe in taking them at all. Athletes come to us looking for ways to enhance their performances. These should include balanced meals, and make sure you include iron, calcium and protein. Iron plays an important role in energy metabolism. Without enough iron, athletes' performances will be affected.
Calcium helps to maintain strong bones and functions in muscle contraction.
Without enough of it, bones will weaken. Insufficient amounts of either calcium or iron can result in fatigue as well. I'm not one to recommend supplements. But, I do recommend if you have trouble including enough calcium, protein, or iron, then you should take a supplement. For athletes looking for an alternative to supplements similar to creatine, foods such as breads, cereals, muffins, waffles, pancakes, pasta, fruit, low fat milk and yogurt can serve as healthy substitutes.