Grapefruit ?: Hi everyone Just wondering if I can... - Thyroid UK

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Grapefruit ?

Anniewoz1 profile image
5 Replies

Hi everyone

Just wondering if I can still eat grapefruit now I’m taking levothyroxine?

Many thanks

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Anniewoz1
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researcherUK profile image
researcherUK

Grapefruit juice may slightly delay the absorption of levothyroxine, but it seems to have only a minor effect on its bioavailability. Accordingly, the clinical relevance of the grapefruit juice-levothyroxine interaction is likely to be small.

ncbi.nlm.nih.gov/pmc/articl...

Moderation is key! A study investigated the consumption of 200 mL of grapefruit juice three times daily for only two days, and results showed a 10 percent decline in the absorption of levothyroxine due to grapefruit consumption.

livestrong.com/article/5215...

Perhaps having one grapefruit every now then will not make a difference if taken a few hours away from thyroxine.

Anniewoz1 profile image
Anniewoz1 in reply to researcherUK

Thanks for taking the time to reply researcheruk

Happy I can still enjoy the occasional grapefruit 😉

researcherUK profile image
researcherUK in reply to Anniewoz1

You are most welcome! Enjoy!

Fruitandnutcase profile image
Fruitandnutcase

I have always had half of a pink grapefruit for breakfast and continued to do that even when I was taking thyroxine as part of my block and replace treatment.

I used to take my levo very early on when I was in bed then wait for an hour and a half or so and have the grapefruit at breakfast time. I don’t think it made any difference to anything.

Anniewoz1 profile image
Anniewoz1 in reply to Fruitandnutcase

Thank you 😊