janeycp We should only supplement when our levels aren't optimal. Some vitamins are fat soluble (A, K, E, D) and if we take more than we need then it accumulates in the body and can cause toxicity. You can see that Vit D is one of these. Also, when taking Vit D there are important cofactors needed to help it work properly. Vit D aids absorption of calcium from food. If the calcium isn't directed to bones and teeth where it is needed, it can build up in arteries and soft tissues and cause problems there such as calcification of arteries, kidney stones, etc.
Water soluble vitamins (all B vits, and C) get pee'd out when taken in excess so if you don't need them you are wasting money if you take them.
So you really need to get your vitamins and minerals tested and take what you need at the appropriate dose along with any cofactors.
There are a few supplements that are useful for us Hypos that can be taken without necessarily testing, these are:
Vit C - this supports adrenals (and the immune system) and it's recommended to take 2000mg daily in divided doses, more can be taken up to bowel tolerance.
B Complex - also helps support adrenals. Not B12 as a single supplement but B Complex. If you take B12 as a single supplement you should also take a B Complex to balance all the B vitamins. A B Complex usually includes all the B vitamins in balance, including some B12 which will suffice if not deficient in it.
A mineral Complex that doesn't include iron (stops the others working and shouldn't be supplemented unless needed), iodine or calcium (they shouldn't be supplemented unless deficient).
Selenium (if not in the mineral complex) - helps conversion of T4 to T3 and helps reduce antibodies when present.
You have to get all the building blocks in place for thyroid hormone to work properly, so testing and optimising vitamins and minerals is essential.
As you have Hashi's, then you should go completely gluten free, having 'just a bit' or being 'almost gluten free' won't help.
Soy in any form is a no-no for us thyroidies, unless it is fermented soy.
If your GP said there is no other brand of Levo then he is lying. There is in tablet form:
See thyroiduk.org.uk/tuk/treatm... and click on each purple bar.
With a TSH of 11 you need some form of thyroid hormone replacement, without it you will only become more and more ill, and if your endo is saying that you don't need treating then he is beyond stupid. Change your endo before he kills you.