Strontium

What does it do?

Strontium is a mineral that is not classified as essential for the human body.

There is research that strontium has been shown to promote strong, osteoporosis-resistant bones,1 lessen the risk of dental cavities,2 and reduce the pain of bone lesions that occasionally develop in association with certain cancers.3 The type of strontium used as a supplement is not the radioactive type.

Where is it found?

Strontium is widely distributed throughout nature. Strontium levels in the soil determine how much strontium will be in the foods grown in particular areas. Areas with strontium-rich soils also tend to have higher levels of strontium in the drinking water.

Strontium has been used in connection with the following conditions (refer to the individual health concern for complete information):

Rating Health Concerns
1Star

Dental cavities

Osteoporosis

3Stars Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

Who is likely to be deficient?

Strontium is not an essential mineral, so deficiencies are not seen with this mineral.

How much is usually taken?

No recommended intake levels have been established for strontium, since it is not considered essential for humans. However, preliminary research in humans suggests that 600–1,700 mg of strontium, taken as a supplement in the form of strontium salts, may increase bone mass in the vertebrae of people with osteoporosis.4

Are there any side effects or interactions?

No consistent toxicities from strontium supplements have been reported.

At the time of writing, there were no well-known drug interactions with strontium.

References

1. Brandi ML. New treatment strategies: ipriflavone, strontium, vitamin D metabolites and analogs. Am J Med 1993;95:69–74S [review].

2. Anttila A. Proton-induced X-ray emission analysis of Zn, Sr and Pb in human deciduous tooth enamel and its relationship to dental caries scores. Arch Oral Biol 1986;31:723–6.

3. Hansen DV, Holmes ER, Catton G, et al. Strontium-89 therapy for painful osseous metastatic prostate and breast cancer. Am Fam Physician 1993;47:1795–800.

4. Gaby AR. Preventing and Reversing Osteoporosis. Rocklin, CA: Prima Publishing, 1994, 85–92 [review].