09/30/2026
My top 5 supplements to keep your thyroid healthy and functioning. 🧬
1️⃣ Selenium — needed to convert T4 into the active T3 your cells actually use. It also supports the antioxidant enzymes that protect thyroid tissue.
2️⃣ Zinc — plays a role in both hormone production and T4-to-T3 conversion. Low zinc shows up often in women with sluggish thyroid symptoms.
3️⃣ Vitamin D — low levels are consistently linked to autoimmune thyroid conditions like Hashimoto's, and most women are more deficient than they realize.
4️⃣ Iron (specifically ferritin) — your thyroid needs adequate iron stores to produce hormone in the first place. Low ferritin can mimic thyroid symptoms even when your thyroid labs look fine.
5️⃣ Magnesium — supports the stress response that so often disrupts T4-to-T3 conversion, and most women are short on it to begin with.
A quick note: I'm not including iodine on this list on purpose. It's essential for thyroid hormone production, but supplementing it without knowing your levels can actually worsen autoimmune thyroid conditions. That one's worth testing for, not guessing on.
As always, the right dose and combination depends on your labs, not a generic stack. Comment THYROID and I'll send you my free Normal vs. Optimal Thyroid Hormone guide. 🤍