Boron (Glycinate) 2 mg by Pure Encapsulations

This is a fit if you’re focused on bone density and your Vitamin D, 25-Hydroxy or Magnesium tends to run low-normal despite a decent diet. Boron helps you hang on to calcium and magnesium, which is useful if your Calcium is often at the low end or you lose minerals with high sweat volume. It’s also relevant for joint comfort in midlife, where low dietary boron tracks with higher osteoarthritis rates. Small studies suggest modest boosts in free testosterone and estradiol, so it can matter if your hormone labs are borderline.

Boron influences how your body uses minerals by reducing urinary calcium and magnesium loss and by supporting activation of vitamin D inside tissues. The glycinate form is boron bound to glycine (an amino acid), which tends to be gentle on the gut and well absorbed. In small human trials, boron has lowered hs-CRP (an inflammation marker) and nudged up active sex hormones by slowing their breakdown. The net effect is steadier mineral handling, possible joint symptom relief, and subtle hormone shifts.

Take 1 capsule with meals, 1–3 times daily, for 2–6 mg of boron per day. Most bone and joint data use around 3 mg daily; clinicians sometimes use 6 mg for a trial period, then step down. Expect joint comfort or hormone shifts within 1–4 weeks, while bone markers and Vitamin D, 25-Hydroxy changes take longer, often 8–12 weeks. Pairing with calcium, magnesium, and vitamin D is reasonable if those are low on labs.

Skip supplemental boron if you have significant kidney disease, a history of high calcium or recurrent kidney stones, or sarcoidosis (a condition that can raise active vitamin D). If you have a hormone-sensitive cancer, are on aromatase inhibitors, or on estrogen/testosterone therapy, talk with your clinician since boron can raise active sex hormones. Pregnancy and breastfeeding: stick to food sources unless your clinician advises otherwise.