robinhood12345
Senior Member
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No, I asked specifically for evidence that the absence of PQQ from the diet leads to death. Without that evidence, nobody can claim that PQQ is a vitamin, even though we know PQQ is an important nutrient, and the body functions under par without it.
The Vitamins 5th edition Combs et al page 496. On libgen.
You say PQQ is a nutrient which means you believe it is made from some other as of yet unknown metabolic process in the body. What process do you believe this is, and do you have any evidence for it?
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