Can I Eat Raw Fruits and Vegetables During Chemo?

The National Cancer Institute's infection page puts this in one sentence. You may be advised to eat only fruits and vegetables that can be peeled, or to wash all raw fruits and vegetables very well.

Two options. Neither of them is "stop eating salad".

That wording matters, because produce is doing real work during treatment. Cutting it out makes it harder to eat well at exactly the point when eating well is hardest.

The Food and Drug Administration's food safety booklet for people with cancer is more specific than most kitchen habits.

Rinse fruits and vegetables under running tap water. Use a clean vegetable brush to scrub firm-skinned produce. Do that even for items with skins and rinds you do not eat, such as melons and citrus, because the knife carries whatever is on the outside through to the inside.

FDA also puts unwashed fresh vegetables, salads included, in its higher-risk column. Washed vegetables and cooked vegetables sit in the lower-risk column. The difference between the two columns is the sink, not the shopping list.

One more line from the same booklet, easy to act on at the store: buy produce that is not bruised or damaged.

For years, people with low counts were put on a strict diet that removed raw fruit and vegetables. It sounded sensible. It was rarely tested.

Then it was. A 2019 systematic review and meta-analysis in BMJ Supportive and Palliative Care pooled six studies, five of them randomized, covering 1,116 patients. About seven in ten had a stem cell transplant.

The results did not go the way the diet's supporters expected:

• No significant difference in major infections between the neutropenic diet and a regular diet.
• No significant difference in bacteria or fungi in the blood.
• No difference in deaths.
• Among transplant patients, the neutropenic diet was linked to a slightly higher rate of infection, not a lower one.

The authors' conclusion was direct: there is currently no evidence to support the use of a neutropenic diet or other food restrictions in patients with cancer and neutropenia. They added what to do instead — follow FDA's safe food-handling guidance.

A 2016 Cochrane review of the same question reached a more cautious version of the same place. It found no evidence supporting the diet, while noting that the trials were small and flawed enough that "no evidence of effect" is not the same as "evidence of no effect".

If your team still asks you to avoid raw produce, that is their call for your situation and worth following. But it is no longer the default, and you can ask why.

Cross-contamination does more damage than the vegetable itself.

FDA's advice is to keep raw meat, poultry, seafood, and eggs — and their juices — away from anything eaten raw. Put raw meat on the lowest shelf of the refrigerator so it cannot drip. Use one cutting board for raw meat and another for produce and ready-to-eat food. Never put washed produce back on a board that held raw chicken.

Hand washing bookends all of it. Twenty seconds, warm soapy water, before and after handling food.

NCI says that during chemotherapy there are stretches in each cycle when your neutrophils are particularly low, and your risk of infection is higher then.

Blood is usually drawn before each cycle. Asking when that low point falls turns a vague worry into a date range. Some people choose to eat more cooked food in those days and go back to salad afterwards. That is a reasonable middle path, and it is a decision you can make with information rather than fear.

• Which days in my cycle are the lowest?
• Do you want me to avoid raw produce at all, or just wash it thoroughly?
• Is there a reason my situation differs from the general guidance?
• What symptoms after eating should make me call you?

This is general information. Your care team's specific instructions for your treatment always take priority.

• NCI — Infection and Neutropenia during Cancer Treatment
• FDA — Food Safety for Older Adults and People with Cancer, Diabetes, HIV/AIDS, Organ Transplants, and Autoimmune Diseases
• Sonbol MB and colleagues — Neutropenic diets to prevent cancer infections: updated systematic review and meta-analysis (2019)
• van Dalen EC and colleagues — Low bacterial diet versus control diet, Cochrane Database of Systematic Reviews (2016)