The amino acid arginine helps keep the human body humming, most notably by synthesizing proteins that carry out a range of cellular processes. It's produced by our bodies and found in common high-protein foods. Low levels of arginine are associated with a number of diseases, including colon cancer.

The amino acid arginine helps keep the human body humming, most notably by synthesizing proteins that carry out a range of cellular processes. It's produced by our bodies and…

Low arginine levels may allow cancer cells and viruses to slip past the immune system by reducing production of a crucial cellular warning protein. In mice, arginine-rich diets…