Oat vary among oat varieties. Also, oats products are frequently cross-contaminated with other gluten-containing cereals during grain harvesting, transport, storage or processing. Pure oats contain less than 20 parts per million of gluten from wheat, barley, rye, or any of their hybrids. Use of pure oats in a gluten-free diet offers improved nutritional value from the rich content of oat protein, vitamins, minerals, fiber, and lipids, but remains controversial because a small proportion of people with celiac disease react to pure oats. Some cultivars of pure oat could be a safe part of a gluten-free diet, requiring knowledge of the oat
Wheat gluten (food) a chain of restaurants, to produce vegetarian sandwiches. In North America, there are several brand-name meat alternatives, which are used in the restaurant and food service markets. A powdered form of wheat gluten is produced and sold as an additive for baking or used to make seitan. Vital wheat gluten is nearly all gluten and almost no starch. When used as an additive in baking, its purpose is to add elasticity to flours that would otherwise be low in gluten, such as whole wheat flour or rye. It improves the rise of the raw dough and also improves the texture