Thorne Thyroid Health Complex Review

Selenium is given at a full studied dose. In people with Hashimoto thyroiditis, pooled trials found it lowered thyroid antibodies and thyroid stimulating hormone ^[1][2]. In a mildly underactive thyroid, it restored normal function in 31 percent versus 3 percent of controls ^[3]. One review judged the evidence too weak for routine use ^[4]. Iodine is at a full dose. It helps mainly people who lack it, for example by shrinking iodine deficiency goitre ^[5]. Too much can harm the thyroid ^[6]. Vitamin C is near the studied dose. It lowered thyroid stimulating hormone in small studies of people on meds ^[7][8], but a larger placebo-controlled trial found no effect ^[9]. Ashwagandha, at 180 milligrams a day, is well below the 600 milligrams that helped in one trial of mildly underactive thyroid ^[10]. Pooled trials found little change in thyroid hormones ^[11]. Zinc is below the studied 30 milligrams. Pooled trials found it raised the active thyroid hormone, with low certainty ^[12]. Copper is also below the studied dose, and there is no good evidence that it helps ^[13]. Vitamin E alone did not change thyroid function ^[14]. Tyrosine evidence is very thin ^[15]. Vitamin B12 has not been shown to help ^[16]. Animal and cell studies are never counted.

Zinc is the main ingredient the panel spoke about, and nine of the ten talked about it: four recommend it and four others use it, while one warns about overdoing it. They take it for testosterone and prostate health, sperm health, mood and motivation, immune support alongside vitamin C, gut lining and stomach problems (in the zinc carnosine form), wound healing, and sleep. Doses given include 15 mg each morning by one panelist and 30 mg for sperm health by another, and the one who warns says too much zinc can lead to low copper. Iodine and selenium also count as main ingredients here: one panelist recommends enough iodine for thyroid hormone levels, while another warns that high doses carry a risk of thyroid autoimmune problems, and one recommends selenium for immune balance. Vitamin C, which was often paired with collagen, is a smaller ingredient in this product and was widely recommended by the panel.