Pfizer's first blockbuster product was manufactured citric acid

Their second blockbuster product was penicillin. Penicillin is purified and potent, while citric acid is not purified and not potent, making you consume much larger volumes of it

We are programmed to read citric acid on a label and think happy thoughts of citrus fruits

It is the remnants of the fungus created by the manufacturing process, and the volume that we consume, that is causing the harm