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.
Updated February 09, 2017. When you start the gluten-free diet, side effects can include changes in your weight (either gains or losses), improvements in your energy level, and boosts to your nutritional status. In many cases, these side effects are beneficial. However, the gluten-free diet also can cause undesirable side effects.