Cholesterol may be a conditionally essential nutrient for humans, dependent on cellular components.

“i believe that it is conditionally essential and i know that that's also a controversial idea because a lot of a lot of existing lipidologists would say that your body makes all the cholesterol it needs to and i think i posit let me put it this way i posit that that's somewhat dependent on its existing constituent components resident in the cell so certainly the cell if it can will make cholesterol if it's absent its availability but do i think cholesterol might be conditionally essential like some amino acids i do think that definitely i think it's very possible”