Which foods are good for those with colon cancer?

Short answer: apart from the usual healthy diet recommendations, whole grains and coffee!

A recent systematic review and meta-analysis by Chan et al. (May 2024) found that: "[...] The overall evidence was graded as 'limited'. The inverse associations between healthy dietary and/or lifestyle patterns (including diets that comprised plant-based foods), whole grains, total, caffeinated, or decaffeinated coffee and all-cause mortality and the positive associations between unhealthy dietary patterns, sugary drinks and all-cause mortality provided 'limited-suggestive' evidence. [...]."