It's a story he told in an interview, as far as I remember he said that he had been taking pregnenelone dissolved in vitamin E, then switched to a new bottle of vitamin E with no pregnenelone and became sick and bed ridden for I believe a week until he realized that he had stopped taking pregnenelone by switching bottles of vitamin E. Sorry I don't remember if it was a Politics and Science episode or maybe an Ask Your Herb Doctors episode, I heard it years ago and it always made me wonder about why he didn't get concerned about the apparent withdrawal symptoms he got.Just to add, I am wondering if I am seeing erroneous things as well. One poster suggested that Peat really didn't think much of Vitamin A to begin with. Then I heard today a story of how Peat got ill after stopping pregnenolone and then some theory was given about liver overload or something or other, and the fact that he blamed it on problems with the product, but in my memory he said he stopped taking pregnenolone because he no longer saw results and instead focused on increasing light exposure. He did recommend the purest forms fo pregenenolone and any supplement, and also suggested a short duration of use just to correct any deficiency, not overloading on anything. I don't see any of that nuance here. It is entirely possible that I just did not hear him speak about getting ill after stopping pregnenolone until starting it again, but sometimes I feel like history is being rewritten and nuance is being lost and everything can be blamed now on the liver being overloaded with this or that and needing detox. Just my two cents.