is it healthier to eat no meat?

[FlatAssembler]

If what you are saying were true, vegetarians would have higher risk of getting cancer. But the evidence is clear that they have lower.

I think you're starting to gain a glimmer of understanding.

People with a diet high in red meat have an increased risk of getting cancer. This does not mean that heme iron causes cancer. It means that excessive levels of heme in a diet may result in the occurrence of certain cancers. Thinking of heme iron as bad or dangerous is just plain dumb and stupid - it is an essential micronutrient (your body won't work without it).

Boru

It obviously isn't. Your body can convert free iron into heme iron. Or else all vegetarians and semi-vegetarians would be anemic.