“…Let's hit the big one and talk about pregnenolone. You're a big pregnenolone advocate. Tell us what it is and why you suggest we use it. When we metabolize cholesterol, what happens is under the influence of thyroid hormone, which stimulates oxidation, and vitamin A, which activates the enzymes to clip a chain off cholesterol, thyroid and vitamin A are the factors we need mostly for producing pregnenolone from cholesterol. So if you're low in cholesterol or thyroid or vitamin A, you're necessarily going to be deficient in pregnenolone, and pregnenolone is the immediate precursor to progesterone and DHEA.”