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.
Gluten is a protein that is found in the grains wheat, barley, and rye. It is also found in any foods that contain these grains. When someone follows a gluten-free diet, they eliminate all sources of gluten from their meal plan.here are many healthy foods you can include in a gluten-free diet. Vegetables, beans, fruit, milk, many yogurts and cheeses, and healthy fats (vegetable oils, avocados, nuts, seeds, etc.) are all naturally gluten-free. There are also many grains and grain-based foods that you can enjoy: 1  Amaranth. 2  Arrowroot.