Can you take Levothyroxine and Zinc together?
Yes, with care — this combination needs a precaution.
Levothyroxine and Zinc can be taken together, but the combination needs a precaution.
Why these two interact
Divalent cations chelate levothyroxine in the gut and reduce absorption by up to 30%.
What to do about it
Take levothyroxine on empty stomach; separate mineral supplements by at least 4 hours.
Timing
Separate Levothyroxine and Zinc by at least 4 hours. Taking them in the same window is what causes the issue, not taking them on the same day.
The two items in this pair
Levothyroxine
- Category:
- medication
- Typical timing:
- morning
- With food:
- empty_stomach
Check your whole routine, not just this pair
One pair rarely tells the whole story. DoseRoutine checks every combination in your stack at once — supplements, TRT, peptides, GLP-1s and prescriptions — and schedules the doses so timing conflicts like this one are handled automatically.
Frequently asked
Related combinations
Educational information only, not medical advice. DoseRoutine does not diagnose or treat. Talk to your prescriber before starting, stopping or combining anything — especially if you take prescription medication or are pregnant or breastfeeding.