[RonF]

Humans are omnivores; our digestive system is designed to be able to handle whatever we can get our hands on. Since plants can't run, we evolved on a diet dominated by plants. However, given our natural abilities plus the advantages of intelligence, we are also predators who have gotten to eat meat.

However, Americans and other such cultures eat a lot more meat than we got as we evolved. It's not surprising that this can cause problems. Also, due to modern medicine we are surviving long enough for things like colo-rectal cancer to develop; back in the day people generally died of trauma or some kind of disease before such cancers had a chance to develop and kill us.

[Flavius]

wow can you imagine since we live so long maybe our systems would get use to eating globs and globs of bad stuff

[Terriergal]

Humans are omnivores; our digestive system is designed to be able to handle whatever we can get our hands on. Since plants can't run, we evolved on a diet dominated by plants. However, given our natural abilities plus the advantages of intelligence, we are also predators who have gotten to eat meat.

That almost sounds plausible, if evolution were true!