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HomeAnswersEndocrinologyunderactive thyroidAre there any foods to be avoided while on Levothyroxine?

I am under Levothyroxine for underactive thyroid. What kind of foods should I avoid?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Medically reviewed by

Dr. Nithila. A

Published At June 8, 2019
Reviewed AtOctober 6, 2023

Patient's Query

Hello doctor,

I had a sudden weight gain. Are there any foods that should be avoided either at certain times of the day or all together while taking Levothyroxine to treat an underactive thyroid?

Hello,

Welcome to icliniq.com.

Avoid raw cabbage, cauliflower, brocolli, soy and soy products like soy sauce, soy milk, tofu, strawberry, walnut, spinach, and brussel sprouts. Do not take any meals or drink except plain water for atleast 45 minutes after taking medication. Avoid taking acidity-causing foods, calcium and iron supplements with the medicine.

Patient's Query

Thank you doctor,

I have read about not having calcium-rich foods for four hours after taking the medication, Is this correct? Can soy and soy products be eaten occasionally or should they be avoided all together?

Hello,

Welcome back to icliniq.com.

Four hour gap is sufficient between calcium and thyroid medicine. You can eat soy products once in a while.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Makwana Tanvi Ghanshyambhai
Dr. Makwana Tanvi Ghanshyambhai

Diabetology

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