I have an allergy to grass and all of the grass by-products, grains, and cereals; such as, wheat, rice, rye, oats, etc...Also, if the cow or chicken eats it, then it will be in the cow's milk and the chicken's egg. I am looking for a product that is wheat-free, rice-free, rye-free, oat-free, milk-free, egg-free etc...