The Antithyrotoxic Factor of Liver

Abstract
The antithyrotoxic activity of liver residue was studied for growth of rats on a purified diet. The experimental diets contained varied levels of vitamins, fats, casein, minerals, carbohydrates, antibiotics and inert ingredients. A diet was developed which gave uniform growth and low mortality only with liver residue. The activity in liver residue appears distinct from known dietary essentials.