Thyroid UK
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Subclinical hypo - Vit D deficient

Hi everyone,

Many thanks for all the replies a few weeks ago.

My GP ok'd further testing and has conceded that I'm hypothyroid, but 'subclinical' and in no need to take synthetic hormones.  

The test also threw up that I'm severely Vit D deficient, which could account for a lot of the fatigue and aches and pains, so I'm on a high-dose supplement for the next 8 weeks before we retest.

Basically I'm happy that they have prescribed me something and if the vitamin d helps me feel better I'm very happy to not be reliant on synthetic hormones for the rest of my life...

But what I would like to know is: can I do anything to boost my thyroid function naturally?  Surely there must be SOMETHING I can do.  Vitamins, mineral, diet, exercise, etc?  Anything to avoid, also?

8 Replies


Good thyroid hormone synthesis relies on optimal iron, cortisol and nutrient levels together with a healthy life style and diet. 

Subclinical should mean without symptoms but you advise of symptoms in a previous post. Excessive tiredness and poor nail/skin health points to low thyroid hormone. Ask your GP to test thyroid antibodies TPOAb & TGAb and also Vit B12, Vit D, folate and ferritin as these are frequently deficient in people with low thyroid hormone.

Post results complete with ranges (numbers in brackets) for members to comment. 

This following link explains the importance of vitamins and where they may be obtained. This forum is supported by the charity ThyroidUK. You do not have to join the charity to benefit from this forum but by doing so you will be supporting the charity and also entitled to various discounts when buying supplements, as detailed in the link below.

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Radd,  I think we unanimously agreed that results were not subclinical - but it's tricky to deal with a doctor who treats numbers not symptoms...

The Vit D should help though, Heyanony. If you can persuade your doctor to the other tests Radd suggested, that would tell you what else might need attention.

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Arrr.  ...   sorry. Not read previous posts properly.

Thank you jazzw


Do a private test for antibodies. Take the D3 and see which symptoms improve. What's your serum ferritin? Low D and low ferritin often seem to go together.

Consider taking a cheap internet fingerprick celiac test. Then if it is negative try going gluten free v strictly for eight weeks ... an exclusion diet.

the antibodies test is important..

Then you can consider going to another dr or self treating.


Hi Hey, I think supporting adrenals may in turn assist your thyroid.  Licorice root and Siberian Ginseng will stimulate the adrenals and along with vitamin C and magnesium support them.  A small amount of iodine might not hurt as your thyroid needs it to make hormone.   We can become low in iodine if ingesting fluoride and chlorine since they aim for the same receptors.  Selenium is found in brazil nuts so adding them may help. 

Going gluten free has helped some if you find you have antibodies.   Soy is not healthy for the thyroid either.


Please read up on iodine first, it can be harmful to some of us who are hypothyroid.


There were a couple of posts yesterday about VitD and LOTS of replies.  Could there be good information for you there ?  I posted a research paper about people having problems with their Vitamin D Receptors when they have Hashimotos ....

Click onto my name - then Replies - should find it !  Sorry in a rush !


How much is your high dose.  I only ask because most doctors are scared of "high" doses and usually don't give enough.  I hope that I am wrong.

Jo  xx


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