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.
People without symptoms may consider avoiding gluten for health reasons, says Crowe. There's more of a modern concern that gluten is somehow not good for us, she says, possibly linked to our transition from hunter-gatherers to cultivators and farmers and the simultaneous increase of grains in our diet. But there's little evidence proving going gluten-free means good health, she says. 2.