Don't confuse retinol with beta-carotene. Beta-carotene is present in many foods, is a precursor to retinal and can safely be eaten in large quantity. Retinol is not so prevalent and is toxic at high levels. The body will metabolise beta-carotene to retinol as it requires.
So you just have to make sure you don't eat too much retinol. Retinol is chiefly found in liver and supplements
Four years Primal with influences from Jaminet & Shanahan and a focus on being anti-inflammatory. Using Primal to treat CVD and prevent stents from blocking free of drugs.
Eat creatures nose-to-tail (animal, fowl, fish, crustacea, molluscs), a large variety of vegetables (raw, cooked and fermented, including safe starches), dairy (cheese & yoghurt), occasional fruit, cocoa, turmeric & red wine