Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772.
âA gluten-free diet is a diet that does not include gluten, a protein found in wheat, rye, and barley,â says Tricia Thompson, RD, a dietitian based in Manchester, Mass., who focuses on developing gluten-free eating programs for people with celiac disease.
The gluten-free diet is very complex; the FDA has only recently standardized the meaning of a âgluten-freeâ label, so it is important for anyone with a gluten-related disorder to talk to a registered dietitian as well as their physician about their nutritional needs.