 Vitamin D helps decrease thyroid autoimmunity. More good news. Hi, this is Dr. Ruscio, and you may have remembered several months ago we discussed a landmark study to my knowledge the first of its kind that showed that supplementation with vitamin D could lower thyroid autoimmunity, which was very exciting because we've seen a lot of correlation data showing that people with certain autoimmune conditions also have low vitamin D, but not nearly as much data showing that supplementing with vitamin D can actually improve autoimmune conditions. So the study that we discussed a while back was very exciting in that regard. Now, thankfully, another follow-up study has shown similar results. And I'll put the abstract up here on the screen, and I'll quote for you. The title of the study was the effect of vitamin D on thyroid autoimmunity in that levothyroxin treated women with Hashimoto's, thyroiditis, and normal vitamin D status. So a couple of things that we can pull away just from the title is that this was treating women who had hypothyroidism and were on levothyroxin therapy, and, and this is maybe even more importantly, they also had normal vitamin D levels. So they were above 20. And so even for women with normal, and again what we call normal is somewhat debatable, but generally normal levels of vitamin D still benefited from some additional vitamin D supplementation with regards to their thyroid autoimmunity. Vitamin D reduced the thyroproxidase antibodies and the thyroglobulin antibodies to the more common antibodies that are tested to assess the activity of thyroid autoimmunity. The greater effect was in the TPO antibodies. And I'll read the conclusion here, vitamin D preparations may reduce thyroid autoimmunity in levothyroxin treated women with Hashimoto's, thyroiditis, and normal vitamin D status. So very exciting, because what this means is you could simply take a maintenance dose of maybe two, four, or six thousand IU's of vitamin D a day, even if you have normal vitamin D levels, and see a positive impact on your thyroid autoimmunity. You do want to be careful not to overselp them with vitamin D because levels that are too high can also be problematic, but certainly a lower maintenance tight dose of around two-ish thousand IU's a day is very reasonable and may help with thyroid autoimmunity. I'll also link to the review of the previous study on vitamin D aiding with thyroid autoimmunity, where they showed a 20% reduction in TPO antibodies after supplementing with vitamin D. So what's really nice about this study and the nice piece that it adds to the whole picture is that even in women with normal or semi-normal vitamin D, an additional supplementation of vitamin D can help benefit thyroid autoimmunity. Now there's many things that kind of fit into the mosaic of managing thyroid autoimmunity. Vitamin D is one selenium, another may be helpful, and the health of one's gut can also be incredibly important, so don't forget about that. I guess that's it. If you're struggling with thyroid autoimmunity, then vitamin D may be a nice option to help quell that process. This is Dr. Ruscio, and I hope this information helps you get healthy and get back to your life. Thanks.