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Nutrition and daily life

Leukemia and thyroid disease

Thyroid disease and leukemia can occur together. Eating links to tablet timing and iodine/salt.

Last updated: ~1 min read
Calm illustration.
Figure 1.Thyroid and food.

01Short answer

Thyroid tablets are sometimes taken apart from food. Agree iodised salt and supplements with your doctor. This card does not replace treatment.

02Simple explanation

Tablet timing.

Iodised salt — ask your doctor.

Do not hide supplements.

Two teams.

03Scientific explanation

NHS: levothyroxine usually on an empty stomach.

WHO: do not raise iodine on your own.

ESPEN/NCI: nutrition should be individual.

04What happens in the body?

Why it matters

Thyroid hormones affect energy and weight.

Nutrition direction

Protein, vegetables, grains; iodised salt and soya with your doctor.

With leukemia treatment

Chemo and steroids can affect weight/sugar; dose is adjusted with labs.

Questions for your team

When to take the tablet? Iodised salt? Which supplements are off?

When two diets clash

One condition's diet can conflict with another's: for example, leukemia needs energy and protein while another illness may call for limits. In such cases the haematologist, the specialist and a dietitian should decide together — don't add restrictions on your own.

Medicines and food

Some foods interact with medicines (for example, grapefruit changes blood levels of several drugs). Steroids can raise blood sugar. Talk to a pharmacist before starting a new food or supplement.

05Four steps

Two teams, one plan, moderation, follow-up.

1Two doctorsHaematology + other.
2One planNo clashes.
3ModerationSalt/sugar/calories.
4Follow-upWeight and labs.
SaferShared plan.
FittingDiet.
ClearQuestions.

06Brief

TopicNote
DirectionProtein, vegetables, grains; iodised salt and soya with your doctor.
TogetherChemo and steroids can affect weight/sugar; dose is adjusted with labs.
QuestionsWhen to take the tablet? Iodised salt? Which supplements are off?

07Key terms

Thyroid
Neck gland.
Levothyroxine
Hormone medicine.
Iodine
Mineral.
Empty stomach
Before food.

08Key points

  • Two teams.
  • One plan.
  • No personal dosing.
  • Do not stop treatment.
  • Write questions down.
  • Diets clash — the doctors decide together.

09Frequently asked questions

Does this diet treat leukemia?

No.

Who decides?

Haematologist and the other doctor together.

Change doses myself?

No.

Will food cure this condition and leukemia?

No. Food supports treatment but does not cure illness.

Who should plan my diet?

Your haematologist, the doctor for the other condition and a dietitian together.

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.

  1. Does this diet treat leukemia?

  2. Who decides?

  3. Change doses myself?

  4. Will food cure this condition and leukemia?

  5. Who should plan my diet?

My questions

12Sources

  1. Leukemia & Lymphoma Society. Diet Guidelines for Immunosuppressed Patients
  2. CDC. Safer Food Choices for People With Weakened Immune Systems
  3. National Cancer Institute. Eating Hints: Before, During, and After Cancer Treatment
  4. NHS. Food safety
  5. World Health Organization. Healthy diet fact sheet
  6. U.S. FDA. Food Safety: What You Need to Know
  7. Memorial Sloan Kettering Cancer Center. Food Safety During Cancer Treatment
  8. American Cancer Society. Nutrition for People with Cancer
  9. ESPEN. ESPEN practical guideline: Clinical Nutrition in cancer (2021)
  10. USDA. FoodData Central
  11. World Health Organization. Guideline: Sugars intake for adults and children
  12. World Health Organization. Salt reduction
  13. U.S. FDA. Grapefruit Juice and Some Drugs Don't Mix
Medical disclaimerThis information is for educational purposes only and does not replace medical advice.
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