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.
Why So Many People Are Going Gluten-Free - Should You? If you've ever polished off a fresh baguette or fought over that last slice of deep-dish pizza, you've eaten gluten. It's the healthy plant protein found in several grains that, among other baking feats, makes bread light, chewy, and irresistible.