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.
For most other people, a gluten-free diet won't provide a benefit, said Katherine Tallmadge, a dietitian and the author of Diet Simple (LifeLine Press, 2011). What's more, people who unnecessarily shun gluten may do so at the expense of their health, Tallmadge said. That's because whole grains, which contain gluten, are a good source of fiber, vitamins and minerals, Tallmadge said. Gluten-free products are often made with refined grains, and are low in nutrients.