is it healthier to eat no meat?

[FlatAssembler]

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

I wonder if you think it's a good idea to drink blood... That's not how nutrition works at all. Just because cholesterol in your blood causes various health problems, that doesn't mean cholesterol you eat causes them. Similarly, just because heme iron in your blood doesn't cause colon cancer, that doesn't mean heme iron you eat doesn't cause it.