Originally Posted by woj

The studies they do on rats are usually pretty short term, 3 months perhaps. So 3 months of drinking 1000 cans/day = 90,000 cans = get cancer. So while 1000 per day is unrealistic, if you stretch it out over someones lifetime, it works out to perhaps 10 cans per day, which is actually pretty realistic number.

It's nothing to panic about, but avoiding substances that increase chance of getting cancer is probably a good idea.