Bluebonnet Age-Less Choice Women 50+ Review

This multivitamin has several thyroid-related nutrients at doses used in studies. Selenium is at a full dose. In people with Hashimoto thyroiditis, pooled trials found selenium lowered thyroid antibodies and thyroid-stimulating hormone ^[1][2]. In pregnant women with thyroid antibodies, 200 micrograms daily cut thyroid problems after birth ^[3]. One review judged the evidence too weak for routine use ^[4]. Iodine is at a full dose and helps mainly people who lack it, shrinking goitre and protecting babies in iodine-poor areas ^[5][6]. Too much iodine can harm the thyroid ^[7]. Zinc is at a full dose. Added to meds it raised thyroid hormone in some trials, though results were inconsistent ^[8][9][10]. Vitamin D and vitamin C results were mixed ^[11][12][13]. Vitamin A and magnesium are below the doses studied ^[14]. The herbal blends hide their amounts, so their effect cannot be judged. Biotin can distort thyroid blood tests ^[15], and chromium and magnesium can reduce absorption of meds ^[16][17]. Animal and cell studies are never counted.

Zinc is the main ingredient here, and the panel is split between neutral and supportive views, with eight of ten speaking about it. Peter Attia-style recommendation aside, one panelist recommends it, three use it, one warns, and the rest are neutral. Those who use it take it for longevity (one takes 15 mg in the morning), for wound healing and tissue repair, for gut lining support in the form of zinc carnosine, for skin as a sunscreen, and to help absorb vitamin C, and one suggests it with magnesium for sleep in women with severe symptoms late in the monthly cycle. The one caution is that taking too much zinc can lead to a copper shortage, and one panelist's pre-surgery plan uses a high dose for one week before and two weeks after an operation. Magnesium, a smaller ingredient in this product, is the most praised extra, with many of the panel taking it at night for sleep, often as glycinate or threonate.

Possible side effects: Studies note that too much iodine can enlarge or slow the thyroid, and potassium iodide caused an underactive thyroid in some people with Hashimoto thyroiditis; biotin can distort thyroid blood tests, and chromium and magnesium can lower absorption of meds. No written reviews were read.