Is Black tea Safe for Graves' Disease?

For people with Graves' Disease, Black tea is best avoided during a flare and worth limiting or using with caution in remission. Black tea naturally contains caffeine, which can worsen palpitations, anxiety, or a fast heart rate in people whose thyroid is already overactive.

Status for Graves'

During a flare
Avoid
In remission
Limit / Caution

Why this rating?

Black tea naturally contains caffeine, which can worsen palpitations, anxiety, or a fast heart rate in people whose thyroid is already overactive.

People who are sensitive to this ingredient may notice gi, thyroid or endocrine. Individual responses vary, so this symptom category does not replace the condition-specific rating above.

Other conditions

Sources

Published sources

  • Sarris, J., & Wardle, J. (Eds.). (2010). Clinical Naturopathy: An Evidence-Based Guide to Practice (1st ed.). Elsevier. ISBN 9780729539265. — literature

Clinical review

Reviewed by Morvarid Nikousokhantayar, MSc Nutrition, Certified Naturopath & Nutritionist — last reviewed September 25, 2026.

This is general dietary information, not medical advice. Talk to your care team about your individual triggers.

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