Avoid unprocessed pork?

[mtbc]

The UK's National Health Service warn that,

Red meat – such as beef, lamb and pork – can form part of a healthy diet. But eating a lot of red and processed meat probably increases your risk of bowel (colorectal) cancer.

The studies I recall seeing tend to focus on processed pork products such as bacon and sausages. I wonder, is it clear that foods like baked lean pork loin are also significantly riskier than, say, turkey? Research results commonly seem to simply collate the pork data into the same bin as, say, for beef, although a pork chop's heme iron level is often found to be rather nearer that for chicken breast than it is roast beef.