Chocolate overview — chocolate card
Chocolate is cocoa, sugar and fats; taste varies by type. Choice, sugar and safety.

01Short answer
02Simple explanation
Sealed pack.
Check the date.
Small portion.
Open display — caution.
03Scientific explanation
WHO: cut free sugars.
CDC: caution with open foods.
ACS: sugar “feeding” cancer is oversimplified.
04What happens in the body?
What is it?
Chocolate is cocoa, sugar and fats; taste varies by type.
Choice
Intact foil; heavy white bloom can mean melting.
Sugar and cocoa
Milk/white sweeter; dark higher in cocoa.
Safety
Open displays can be risky in neutropenia.
Caffeine and theobromine
Cocoa contains caffeine and theobromine; dark chocolate has more of both. If you have poor sleep, palpitations or nausea, cut down on chocolate in the evening. Ask your pharmacist about any medicine questions.
Storage
Keep chocolate in a dry, cool place in closed packaging. A white bloom is usually fat or sugar rising to the surface, but if the wrapper is torn or the smell has changed, don't eat it. Filled chocolate (cream, nuts) spoils faster.
05Four steps
Sealed pack, date, small piece, wash hands.



06Brief
| Topic | Note |
|---|---|
Pack | Sealed. |
Sugar | Eat little. |
Display | Caution. |
07Key terms
- Pack
- Factory seal.
- Free sugars
- Sugar in the sweet.
- Display
- Open counter.
- Neutropenia
- Infection risk.
08Key points
- Sealed pack.
- Check date.
- Small portion.
- Skip open displays.
- Not a treatment.
- Cocoa contains caffeine — less in the evening.
09Frequently asked questions
In neutropenia?
Sealed pack and team rule.
A lot?
High sugar — keep small.
Treats leukemia?
No.
Is dark chocolate a treatment?
No. Dark chocolate does not treat leukemia.
How much a day?
A small portion (one or two squares) is enough; it is high in sugar and calories.
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.
In neutropenia?
A lot?
Treats leukemia?
Is dark chocolate a treatment?
How much a day?
12Sources
- Leukemia & Lymphoma Society. Diet Guidelines for Immunosuppressed Patients
- CDC. Safer Food Choices for People With Weakened Immune Systems
- National Cancer Institute. Eating Hints: Before, During, and After Cancer Treatment
- NHS. Food safety
- World Health Organization. Healthy diet fact sheet
- U.S. FDA. Food Safety: What You Need to Know
- Memorial Sloan Kettering Cancer Center. Food Safety During Cancer Treatment
- American Cancer Society. Nutrition for People with Cancer
- ESPEN. ESPEN practical guideline: Clinical Nutrition in cancer (2021)
- USDA. FoodData Central
- World Health Organization. Guideline: Sugars intake for adults and children
- World Health Organization. Salt reduction
Pack
Sugar