Log in
Thyroid UK
91,703 members106,003 posts

Can i reverse/halt my subclinical hypothyrodim? TSH level reduced over the last decade without medication

Hello! I have been prescribed 25mcg levothyroxine after blood results showed elevated TSH around the 4.6/4.9 range over the last few months. The most recent results were:

TSH 4.9

Reference range 0.30-6.00

Free T4 14.2

Reference range 10.0-22.0

My GP told me when i was tested 10 years ago, my TSH level was 6.4 back then! (I was at university at this time and living quite unhealhily). This indicates a reduction in TSH level without medication over a decade. I thought the thyroid would gradually get worse over the years without treatment.

This leads me to question whether there could be another cause for my subclinical hypothyrodism? Perhaps a nutrient deficiency or adrenal problem?

In terms of symptoms am not overweight but am cold alot and have a slow heart rate - 48bpm! The doctor asked if i was a professional athlete!!!

Thank you

5 Replies

Rolo123 You won't know if there is any nutrient deficiencies or an adrenal problem unless you test for them.

I would suggest the first things to test are vitamins and minerals

Vit D




All need to be optimal for thyroid hormone to work, that's our own or replacement hormone.

Ask your GP and say that you understand that hypo patients tend to have low levels so can he test. If he refuses, you can do a fingerprick test at home from Blue Horizon or Medichecks.

Also, test thyroid antibodies. There are two types - Thyroid Peroxidase (TPO) and Thyroglobulin (TG). The NHS rarely tests TPO and almost never tests TG. These again can be tested with a fingerprick test.

Both companies do a combined Thyroid/Vitamin/Mineral bundle




Thank you for your prompt reply

My ferritin level was tested and was 55ug/L

Reference range 13.00-150.00ug/L

I have been tested for thyroid peroxidase antibodies and am will get results tomorrow.

I think I will have the vitamin D, B12 and folate testing done as a priority via the link you suggested thank you


You are aiming for at least 70 on ferritin.


Maybe, maybe not. You need to optimise digestion as well as nutrients.


I just got my thyroid antibodies result back over the phone- they didnt give me specific numbers but said they were in normal range. What could be the cause of my high tsh/lowish T4 if i dont have antibodies? Anyone help?


You may also like...