Uni-Liver is an exceptionally pure, natural product derived exclusively from prized grass-fed Argentinian cattle which have been raised without steroids, hormones, or pesticides. Freed of fat, water and connective tissue, Uni-Liver is quickly flash frozen to -18ºC. One of the most nutritious supplements available to all bodybuilders, Uni-Liver is very high in important amino acids and rich in key vitamins and minerals, including heme iron, riboflavin, folic acid and B12. t. Uni-Liver has been a classic staple of hardcore bodybuilders for over 15 years. Certified BSE-free.