Based upon my experiences performing security cooperation duties in the Military Assistance Program (MAP) in Jordan, at a GCC, and at DISAM, I offer some thoughts and comments concerning the SDO/DATT concept.
No. Barley is not wheat at all. Barley and wheat are two different species of cereal grasses belonging to the family Triticeae. Barley does belong in the wheat family, which is, as mentioned, Triticeae, but is of an entirely different species from wheat. The species name for barley is Hordeum vulgare, and the species name for wheat is Triticum aestivum. No doubt either look similar, but both are quite different from the other.
Gluten (Definition) Wheat barley rye contains gluten, a protein molecule that in susceptible people can cause reactions and long term illness. There is celiac, the most well known and severe gluten disease. There is gluten sensitivity, affecting more people, but usually milder. There is wheat allergy, less common than the others. The treatment, for now, is to avoid all gluten in food, supplements, drinks, etc. ...Read more.