Ray Peat Interview About Supplements And Vitamins?

I remember I once listened to one interview were Ray Peat talks about which vitamins are "contaminated",bad and which are acceptable,butI cannot remember which it was.Does anybody know?

 

This interview is great and he talks about contaminated vitamins, etc.

 

yay no long-winded uninformed and inarticulate rants by Andrew. Peat gets to talk at length. Peat is called simply Ray, not the annoying "Dr Peat". RP is no "Dr Mercola" or "Dr Oz."