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Lean meat and fish

Best

If you're going to eat meat, go for chicken, fish, and other lean meats—they'll go down a lot easier than a juicy steak.

"Red meats tend to be fattier," Anderson says. "Your body can handle lean meats and fish and chicken a whole lot better than prime rib."

And lean meats and fish have not been associated with an increased risk of colon cancer like high-fat red meats have.

Next: Whole grains