A member asked:

Can dietary supplements be taken with thyroxine? i am due to start on it but am currently taking lots of supplements

A doctor has provided 1 answer
Dr. James Chu answered

Calcium, iron beware: The two substances that most commonly cause decreased stomach absorption of thyroid hormone are calcium and iron. We usually recommend that any vitamins, supplements and medicines (e.g. Antacids) that contain calcium and/or iron be taken at least 3-4 hours separated from thyroid pills. Otherwise, the thyroid levels that are absorbed into the body may vary each day.

Answered 8/27/2014

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