is it healthier to eat no meat?

[BrianSoddingBoru4]

Because free iron is unbound. It can damage organs, facilitate the spreading of cancer cells, cause bad bacteria to flourish and (at very high levels) damage DNA.

Boru

Then why it is that nearly all studies about that show that the heme iron increases the risk of various cancers (most strongly colon cancer), rather than the free iron?

No studies show that. It’s excessive heme iron that slightly increase the risk of colon and rectal cancer. Proper levels of heme keep you from dying.

Since 95% of the functional iron in your body at any given time is heme iron, it beggars belief that it’s bad for you.

Boru