USA: Food safety
Food-safety rules are the same everywhere, but local dishes and shopping habits add their own features. This chapter applies the rules to life in the USA.

01Short answer
02Simple explanation
Clean hands and kitchen.
Raw and cooked apart, meat cooked through.
Chill quickly.
03Scientific explanation
Five keys: the WHO “Five Keys to Safer Food” sets out five core rules against food-borne illness.
In cancer: The US FDA advises people with cancer to avoid raw or undercooked meat, raw eggs, unpasteurised milk and soft cheeses, and raw sprouts.
04What happens in the body?
Shopping
Buy meat and dairy where there is refrigeration; check packaging and use-by dates. Pick up chilled items last and get them home quickly.
In the kitchen
A separate board and knife for raw meat. Cook meat, poultry and eggs thoroughly. Wash fruit and vegetables in safe water.

Storage
Keep the fridge at 5 °C or colder. Eat leftovers within one or two days and reheat them well. Store raw meat covered on the bottom shelf.

Local dishes
The FDA guide for at-risk groups advises reheating deli meats and hot dogs until steaming and avoiding raw oysters, unpasteurised juice and milk, and raw sprouts.
05Safe food in four steps
Based on the WHO five keys.







06Key points at a glance
| Topic | In brief |
|---|---|
Shopping | Buy meat and dairy where there is refrigeration; check packaging and use-by dates. Pick up chilled items last and get them home quickly. |
In the kitchen | A separate board and knife for raw meat. Cook meat, poultry and eggs thoroughly. Wash fruit and vegetables in safe water. |
Storage | Keep the fridge at 5 °C or colder. Eat leftovers within one or two days and reheat them well. Store raw meat covered on the bottom shelf. |
Local dishes | The FDA guide for at-risk groups advises reheating deli meats and hot dogs until steaming and avoiding raw oysters, unpasteurised juice and milk, and raw sprouts. |
07Key terms
- Neutropenia
- Low neutrophils.
- Pasteurisation
- Heating that kills germs.
- Cross-contamination
- Germs passing from raw to cooked food.
- Listeria
- A bacterium that can grow even in the fridge.
08Key points
- Clean hands.
- Raw and cooked apart.
- Cook thoroughly.
- Chill quickly.
- Take care with risky local dishes.
09Frequently asked questions
Can I eat out?
During neutropenia the risk is higher; if you do, choose freshly cooked hot food and ask your team.
Street food?
It is safer to avoid it during this time.
How long can leftovers keep?
One or two days, covered, in the fridge.
10Questions for your doctor
Take these questions to your appointment. The ones you save are collected on the “My questions” page and stay on this device only.
Can I eat out?
Street food?
How long can leftovers keep?
12Sources
- World Health Organization (WHO). Five keys to safer food
- U.S. Food and Drug Administration (FDA). Food Safety for Older Adults and People with Cancer, Diabetes, HIV/AIDS, Organ Transplants, and Autoimmune Diseases
- FoodSafety.gov (U.S.). Food Safety for People with Cancer
- National Cancer Institute (NCI). Infection and Neutropenia during Cancer Treatment
- U.S. Food and Drug Administration (FDA). Food Safety for Older Adults and People with Cancer, Diabetes, HIV/AIDS, Organ Transplants, and Autoimmune Diseases
- Türk Hematoloji Derneği (Turkish Society of Hematology). Official website (in Turkish)
- Ministry of Health of the Republic of Türkiye. Official website
- Social Security Institution of Türkiye (SGK). General health insurance (Genel Sağlık Sigortası, in Turkish)
- Ministry of Health of Türkiye. Aile hekimliği (in Turkish)
- National Cancer Institute (NCI). Leukemia — Patient Version
Shopping
In the kitchen
Storage
Local dishes