Strontium
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A mineral chemically similar to calcium, sold in supplement form usually as strontium citrate.
Why it’s used
Taken by some for bone health support, based on its structural similarity to calcium.
What the evidence is for
bone mineral density changes, studied primarily with strontium ranelate, a prescription form.
What the evidence says
The strongest human evidence for strontium and bone density comes from trials of strontium ranelate, a prescription compound studied and used in some countries for osteoporosis, not the citrate form typically sold as a dietary supplement. Direct evidence for strontium citrate at supplement doses is much thinner.
Context
Ranelate trials such as the TROPOS study used a fixed prescription dose distinct from over-the-counter strontium citrate products, so results from that research do not directly translate to supplement labels.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.