That was saccharin. I remember the label on my granddad's Tab cola. It caused bladder cancer in lab animals at high doses, and it was later found that the meta

That was saccharin. I remember the label on my granddad's Tab cola. It caused bladder cancer in lab animals at high doses, and it was later found that the metabolic pathway that caused the cancer did not exist in humans. https://en.wikipedia.org/wiki/Saccharin https://en.wikipedia.org/wiki/Saccharin