1) Like soy flour, diet-wise 
There is not wheat, rye, barley or oat gluten present in the product. Products are randomly tested to ensure that there is no contamination of gluten from other sources.
Cosmetics that are free of ingredients derived from gluten, which naturally occurs in grains
Grains or grain-based foods that do not contain gluten or the components of gluten, the peptides glutenin and gliadin.