Sulfur comprises 0.25 percent of body weight. Sulfur has a vital relationship with protein, since sulfur is found in the amino acids methionine, cystine, and cysteine. Thus, these amino acids are known as the sulfur bearing amino acids which are considered the building blocks of protein. A lack of proper protein in our diet, therefore means a lack of the vital organic sulfur necessary for good health. Proteins contain sulfur, while carbohydrates and fats do not.
Sulfur is necessary for collagen synthesis.
Collagen is an insoluble fibrous protein found in vertebrates. It is the dominant component of connective tissue fibrils and bones. Sulfur operates as a synthesizer and activator with the B vitamins, thiamin, Vitamin C, biotin, and pantothenic acid, all of which are needed for metabolism and healthy nerves. Sulfur plays an important part in tissue breathing, the process whereby oxygen and other substances are used to build cells and release energy. Sulfur also helps to maintain overall body balance between acidity and alkalinity, and works importantly with the liver to excrete bile.