Strontium
Mineral that may support bone density, but with some safety concerns.
Also known as: Strontium Citrate • Strontium Ranelate
Overview
Strontium is a mineral chemically similar to calcium. Certain forms, like strontium ranelate (a prescription drug in some countries), have been shown to increase bone mineral density and reduce fracture risk. Strontium citrate is available as a dietary supplement. While it may offer bone benefits, there are concerns about its long-term safety, particularly regarding cardiovascular risks.
Key Benefits
Bone Mineral Density
May increase bone density by stimulating bone-building cells (osteoblasts) and inhibiting bone-resorbing cells (osteoclasts).
Dosage & How to Take
680 mg of elemental strontium per day.
| Purpose | Dose | Notes |
|---|---|---|
| Bone support | 680 mg/day | Take at least 2 hours apart from calcium. |
Best Time to Take
Bedtime, on an empty stomach
With or Without Food
No
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Strontium Citrate | Good | Bone support | Most common supplemental form. |
| Strontium Ranelate | Good | Prescription use for osteoporosis | Not available as a supplement in the US. |
Side Effects & Safety
Common
- Nausea
- Diarrhea
Rare
- Increased risk of blood clots and cardiovascular events (with strontium ranelate)
Contraindications
- History of blood clots
- Cardiovascular disease
- Kidney disease
Interactions
Competes for absorption, reducing the effectiveness of both minerals
Scientific Research
Efficacy and safety of strontium ranelate in the treatment of postmenopausal osteoporosis
A large review found that strontium ranelate significantly reduced the risk of vertebral and non-vertebral fractures but was associated with an increased risk of venous thromboembolism.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.