Morley speaks with Matt about the importance of retinol.

Retinol, or vitamin A, is a fat soluble vitamin only found in animal foods in significant amounts. In this interview, Morley breaks down the critical importance of this nutrient for regulating iron recycling, decreasing inflammation, gene transcription, protecting from cancer, and loading copper into the ceruloplasmin protein that expresses the master antioxidant called ferroxidase.

He shares some fascinating and somewhat depressing information about our current food system, even grass-fed and organic, and the difference between marine and land sources of retinol. Morley and Matt discuss about cod liver oil in depth and why Matt has changed his mind on this subject.