Mitolife Beef Liver is sourced from 100% grass-fed New Zealand cattle. Our freeze-dried liver is non-defatted, preserving heat-sensitive nutrients, like retinol and vitamin E, and unique peptides. It's a great source of protein-bound iron for those on a westernized diet who lack the vitamins and minerals their body needs. Regain energy and vitality with Mitolife Beef Liver!