The Best Vitamins and Nutrients for Thyroid Health
Now that we know a bit more about the role that nutrients can play in supporting your thyroid gland, I want to take you through some of my personal favorites…
Selenium
Selenium is critical for T4-to-T3 conversion, and diminishing thyroid antibodies. There is good data stating that, if thyroid antibodies are high, they can cause symptoms even if your thyroid levels are normal — which is why it’s worth addressing.
We can get selenium in good amounts from things like:
- Brazil nuts
- Sunflower seeds
- Lentils
Vitamin A
The relevance of vitamin A is that it is able to regulate gene expression in response to thyroid-stimulating hormone (TSH). We also know that vitamin A needs to be converted, and thyroid abnormalities can make that more difficult.
By adding rich dietary sources of vitamin A, clinical trials have shown that doing so can lower TSH when it is too high (while elevating T3 when it is too low). This is true mainly for women with suboptimal thyroid function.
Zinc
Studies have shown that zinc supports proper TSH production, while also playing a role in converting T4 into T3. Zinc is also required for a healthy immune response.
It turns out that, while we can get zinc in our diet, extra amounts can be useful. That said, excessive amounts can be disruptive. Something like 10-12 milligrams per day is a nice amount of supplemental zinc for most adults.
Vitamin D
Vitamin D has been shown to lower antibodies when they are too high, but it is also important for regulating the overall immune response.
The trick with vitamin D is that there are truly not a lot of dietary sources of it. We might find a little vitamin D in some foods, but not enough to make a difference.
Sunlight can help, but in the modern world, we’re not outside enough to get the proper amounts. This makes vitamin D one that requires further supplementation. Most adults need about 1,000 IU’s to achieve blood levels of 30-50 nanograms per milliliter of vitamin D.
Vitamin C
For many facets of our health, including thyroid function, vitamin C is critical. We know that vitamin C protects thyroid cells from oxidative stress. It also helps the body more effectively absorb thyroid medication if those people are taking it.
Vitamin C may also be able to stabilize thyroid hormone levels in those with gut permeability and digestive problems.