Food safety during cancer treatment.
- Tatiana Turobova
- Feb 19
- 3 min read
Updated: Mar 3

Cancer and it's treatment can weaken the body's immune system by affection the blood cells that protect against germs.
Following SAFE FOOD practices can reduce the risk of food-borne illness.
1. Some FOOD should be AVOIDED by anyone going through cancer treatment, because these food can contain high levels of bacteria (picture):
❌ undercooked meat of poultry (chicken, duck, turkey), especially ground meats,
❌ raw or runny eggs, smoothies or drinks made with raw eggs,
❌ non-pasteurized vegetable and fruits juices,
❌ uncooked vegetable sprouts (alfalfa, radish, broccoli etc.)
2. CLEANING PROPERLY:
- wash your hands with warm water and liquid soap before eating, before and after cooking, after bathroom and after touching pets,
- clean counters and cutting boards with hot water and liquid soap,
- use paper towels to clean kitchen. If can't ▶️ cloth towels should be replaced daily and laundered in hot water,
- wash fruits and vegetables well under running water BEFORE peeling or cutting,
- packaged salads should be rinsed AGAIN under running water,
- wash the top of canned food with liquid soap and water before opening.
3. HEATING and STORING FOOD:
- keep your refrigerator set at or below 400F (4-50C), use special thermometer to control the temperature,
- refrigerate meat, poultry (chicken, duck, turkey), seafood, eggs within 2 hrs of buying or preparing them
- throw away fruits and vegetables that are slimy or moldy,
- throw away eggs with cracked shells,
- throw away food that look or smell strange (never taste them!!!),
- discard food that has not been eaten an in appropriate timeframe (picture).
4. AVOIDING CROSS-CONTAMINATION:
- keep raw meat, poultry (chicken, duck, turkey) or seafood SEPARATED from other foods (during shopping in separate plastic bags, and in the refrigerator),
- if you do defrosting (thawing) raw meat / poultry / fish in the refrigerator, place them in a CONTAINER to catch liquid on the lower shelf,
- keep food separated on the countertops. Use SEPARATE and CLEAN cutting boards and knives for raw meats and other food (ex., bread),
- when grilling, always use a CLEAN plate for the cooked meat,
- marinades used on raw food should NOT be used as a sauce. Reserve a portion BEFORE putting raw meat or poultry in it.
5. COOKING FOOD WELL:
- ensure all meats / poultry / fish are cooked thoroughly (“well done”),
- when cooking in the microwave, rotate the dish,
- cook eggs until both whites and yolks are firm (not runny),
- when reheating soups, sauces, gravies, be sure to bring to boil.
6. CHOOSING FOOD CAREFULLY:
- always check packaging date, “sell-by” and “use-by” dates,
- do NOT use damaged, swollen, rusted, deeply dented cans. All packaged and boxed food have to be properly sealed!,
- choose only perfect fruits and vegetables,
- do not buy produce that has been cut at the grocery store; at the bakery avoid refrigerated cream desserts,
- do not eat foods from self-serve or bulk containers,
- do not eat food samples,
- only purchase refrigerated eggs and check to be sure there are no cracked eggs,
- never leave food in a hot car. If you live far from the grocery store or when weather is very hot, take in your car a cooler or thermal bag for foods.
7. EAT OUT SAFELY
- try to dine early to avoid crowds,
- in café and restaurants (including fast-food) ask that food be prepared fresh,
- ask for single-serving condiment packages,
- avoid salad bars, delicatessens, buffets, smorgasbords, potlucks, sidewalk vendors, food tracks,
- avoid “fresh-squeezed” juices or sliced lemons / limes in restaurants,
- be sure that utensils are put on napkin or clean tablecloth or placemat,
- if you want to keep your leftover, ask for container and put the food in it YOURSELF,
- refrigerate leftovers as soon as possible (better within 2 hrs; but if temperature outside is > 90 F or > 32 C, refrigerate them within 1 hr).
Do not forget to STAY HYDRATED: keep a glass or bottle of water or another healthy fluid with you all times/ It can be also chicken broth, pasteurized fruit and vegetable juices and nectars, fruit punch, caffeine-free hot or iced tea, coconut water, pasteurized milk / almond milk / soy milk.
Please, stay safe and healthy.
Sincerely yours,
Dr. Tatiana
P.S. To prepare this post about food safety I used recommendations of dietologists of ASCO
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