Thyroid UK
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Blood Group/Thyroid status and diabetes

Is blood group relevant to having type 2 diabetes? Further, have there ever been any surveys into Hypothyroid and Diabetes. Gps had insisted on reducing my thyroxine for many years and finally I became diabetic. Because my thyroid was undertreated had gained three or four stone in ten years without changing my diet. They have increased it by 25g and I have lost a stone and a half.

5 Replies

Hi Not sure about blood group. As thyroid disease often auto immune and diabetes always is they tend to go together along with all autoimmune diseases.



This is an excerpt from Dr Lowe's archived website. He does mention that we should be on high enough doses (not replacement) and on another page mentions heart disease, diabetes etc:-

As in your case, T4-replacement leaves many patients suffering and burdened with excess weight they can’t lose. What’s more, it increases their risk of several potentially-fatal diseases and increases their use of drugs. Because of this, in my opinion, you should resolutely refuse to allow T4-replacement to keep you feeling poorly. No hypothyroid patient should settle for that.

It is always best for a patient to work with a cooperative doctor who is knowledgeable about thyroid hormone therapies other than T4-replacement. But if you can’t find such a doctor in your area, don’t get discouraged. You have other options that in general are better than T4-replacement. For example, you can switch to over-the-counter (OTC) desiccated thyroid. We’ve seen patients markedly improve or fully recover with these OTC products after remaining sick for years on T4-replacement. Changes are you’ll do much better on one of these products.


This is a link to Dr Mercola on Type 2 diabetes


You should get copies of your thyroid gland blood tests for your own records if the surgery will give you. This is an excerpt from a Pulse article by Dr Toft ex President of the BTA and you will see he also mentions suppressed TSH. It also mentions if you are still unwell, T3 can be added to T4:-

6 What is the correct dose of thyroxine and is there any rationale for adding in tri-iodothyronine?

The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range – 0.2-0.5mU/l.

In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l. Most patients will feel well in that circumstance.

But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.


Hi shaws - so sorry not to have answered and thanked you for your helpful replies. I didn't know I had to look for them assuming I would get notification by email.

I am going to see GP on 14th of this month and with what I've learned from this site I shall try to insist that she tries to help me get normal health for what life I have left ! I feel very badly done by and terrified that I might die before the medical profession will let me be well.

Many thanks to you and the others for your help.


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