Can wrong dosage of levothyroxine cause iron de... - Thyroid UK

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Can wrong dosage of levothyroxine cause iron deficiency anaemia ? I have had an endoscopy and gastroscopy with normal results but am anaemic

Chrissiep profile image
10 Replies

Ferritin levels very low,but don't appear to be bleeding . I am 69 years old and suffer from fibromyalgia.

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Chrissiep
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helvella profile image
helvellaAdministrator

Insufficient thyroid hormone can result in low stomach acidity. This can reduce ability to absorb iron and, in time, iron deficiency anaemia. So the answer is, yes!

Others will pile in, but it is often suggested that any iron supplements you take are accompanied by vitamin C (ascorbic acid) which will help with absorption.

Iron from sources such as liver are generally better absorbed, less likely to cause problems, and more effective than iron sulphate and the other "mineral" iron supplements.

So far as I can see, there will be a sort of vicious circle. Low thyroid, less iron absorbed, hence less effective use of thyroid hormone, and so on...

Rod

Chrissiep profile image
Chrissiep in reply tohelvella

Thank you so much for this information. Very helpful.

When u are hypo u lose the ability to absorb iron.

Chrissiep profile image
Chrissiep in reply to

Thank you for your reply. Very interesting.

Chrissiep profile image
Chrissiep

Many thanks. I don't know anything about NDT. Is it available on the NHS ? My GP is adamant that I am having adequate levothyroxine, because my blood tests are within normal range, but I feel differently.

Marz profile image
Marz

Also low VitD has been implicated in Low Iron - as mentioned in an article on vitamindcouncil.org

Chrissiep profile image
Chrissiep in reply toMarz

Thank you. Will do more research.

Marz profile image
Marz in reply toChrissiep

Am also wondering what your FT3 result was when tested. LOW T3 can often be associated with Fibro. With T3 being an ACTIVE hormone and needed in trillion of cells in the body - then it needs to be towards the top of the range for there to be enough to go around :-) It may help others to help you if you posted your last results with ranges. Also the results of the Iron Folate Ferritin B12 VitD - The Famous Five :-)

Chrissiep profile image
Chrissiep in reply toMarz

Thank you Marz. I only have my ferritin level, which is 7. I must see my GP again and ask for my latest readings.

Marz profile image
Marz in reply toChrissiep

Need the Ferritin range as well as result. Hope you can soon obtain your results from the Doc....

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