100% Beef Heart - That's it, nothing else, nothing added! Beef heart is especially high in B12, which is great because it must be present for several enzymes to perform their jobs! Our organ products feed their instinctual drive for nutrition! Organs, commonly referred to as a superfood offer some of the densest sources of nutrients like B vitamins, iron, phosphorus, copper and magnesium and are rich with the most important fat-soluble vitamins, A, D, E and K!