9 Vitamins & Supplements That DESTROY Your Liver & Kidneys

1. Excessive Vitamin A (Preformed Retinol)

What it is

 Vitamin A comes in two general forms: preformed vitamin A (retinol/retinyl esters) found in animal-derived foods and supplements, and provitamin A carotenoids (e.g., beta-carotene). The toxic risk is mostly from the preformed kind.