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.
Many people may just perceive that a gluten-free diet is healthier.. In fact, it isnât. For people with celiac disease, a gluten-free diet is essential. But for others, unless people are very careful, a gluten-free diet can lack vitamins, minerals, and fiber, says Green.