Since the advent of sport, athletes have worked to gain an edge on their competition--to look, feel, and perform their best--through both training and nutrition. Today, science is increasingly showing the negative impact that gluten, a protein in wheat, barley, and rye, can have on health.
For the estimated 30 million Americans with forms of gluten intolerance, such as celiac disease, this all-too-common protein can cause gastrointestinal...