Supplement · Joint, bone & connective tissue
Strontium
Also known as: Strontium citrate
Bone-density marketing that borrows from a prescription drug the supplement is not.
- Evidence
- Unproven· human data
- Sources cited
- 1
- Last reviewed
- 22 July 2026
Strontium supplements are marketed for bone density, trading on strontium ranelate — a prescription drug once used for osteoporosis. The over-the-counter citrate form is not the same product and lacks that trial evidence.
Strontium also distorts bone-density (DEXA) readings because it is denser than calcium, so apparent 'gains' can be a measurement artefact rather than real bone. Prescription strontium was restricted over cardiovascular and clotting concerns, so the safety picture is not reassuring either.