Research consistently shows that diet plays a significant role in cancer risk. While no single food prevents or causes cancer, overall eating patterns can make a meaningful difference.
Foods That May Reduce Cancer Risk
- Cruciferous vegetables (broccoli, cauliflower, cabbage) — contain sulforaphane, shown to have anti-cancer properties
- Berries — rich in antioxidants that protect cells from damage
- Turmeric — curcumin has anti-inflammatory properties studied in cancer prevention
- Green tea — contains EGCG, a powerful antioxidant
- Whole grains — high fiber intake linked to reduced colorectal cancer risk
- Legumes — beans and lentils provide fiber and plant protein
Foods to Limit or Avoid
- Processed meats (classified as Group 1 carcinogen by WHO)
- Alcohol — linked to breast, liver, colon, and esophageal cancers
- Highly processed foods — ultra-processed foods linked to increased cancer risk
- Excessive red meat — limit to less than 500g per week
- Sugary drinks — contribute to obesity, a major cancer risk factor
During cancer treatment, nutritional needs change. Always consult with your oncologist or a registered dietitian before making major dietary changes during treatment.
