10 Foods to Avoid During Chemotherapy
Here are key foods cancer patients should avoid during chemotherapy:
1. Grapefruit (including juice)
Contains enzymes that interfere with drug metabolism
Consult pharmacist about specific drug interactions
2. Raw Meat & Fish
Includes sushi and carpaccio
Risk of bacterial contamination when immune system is compromised
3. Unwashed Fruits and Vegetables
May harbor bacteria, viruses, and parasites
Important to wash thoroughly before consumption
4. Beverages to Limit:
Caffeinated drinks (especially after lunch)
Alcohol (can affect liver function and interfere with treatment)
5. Unpasteurized Dairy
Particularly soft cheeses (brie, camembert, goat cheese)
Risk of harmful bacteria
Note: Pasteurized dairy products are safe
6. Certain Supplements
Avoid antioxidant supplements (food sources are fine)
Garlic (acts as blood thinner)
St. John's wort (can interact with medications)
7. Processed Foods
Contains artificial additives
Can lead to depression and weight gain
May replace more nutritious options
8. Sugary Foods
Can increase anxiety
May affect sleep and focus
Displaces healthier food choices
9. Deli Meats
Risk of contamination from extended display
Pre-packaged meats with dates are generally safe
Important Note: Common misconceptions about soy and dairy products were addressed - these foods do not need to be avoided unless specifically directed by your healthcare provider.
Sleep quality and immune system function are key considerations when making dietary choices during chemotherapy. Always consult with your healthcare team about specific dietary restrictions based on your treatment protocol.
About Dr. Jennifer Griggs
A long-time practicing oncologist and professor at the University of Michigan, Jennifer has received several awards for her medical excellence and published over 150 original research articles as well as numerous editorials and book chapters.
She is also a speaker and advocate, committed to improving the quality of medical care and reducing the barriers to equity among the disenfranchised.
This blog was reviewed by Dr. Sourabh Kharait.
