Levothyroxine, Coffee and Food: Timing Matters

Overview

Absorption of thyroid hormone medicine such as levothyroxine can be affected by food, coffee and some supplements. Consistent timing matters for treatment.

How should results or symptoms be assessed?

It is generally taken with water on an empty stomach, with a waiting period before breakfast or caffeinated drinks. Calcium and iron supplements may require a longer separation; follow your prescription.

Practical next steps

Use a consistent routine, discuss brand or dose changes and tell the clinician how you take the medicine when reviewing TSH results.

When is medical help needed?

Palpitations, chest pain or severe breathlessness need prompt medical assessment; never alter doses on your own.

Frequently asked questions

Can this article establish a diagnosis or treatment?

No. An individual history, examination and sometimes further tests are needed.

What should I prepare for a consultation?

Note when symptoms began, past reports, your medicines and questions so you can discuss them clearly.

Online advice cannot replace an in-person examination when one is required.

This article provides general information and is not individual medical advice.

Reference: https://www.nhs.uk/medicines/levothyroxine/