Strontium

What is it?

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):

Science Ratings	Health Concerns
	Osteoporosis
	Dental cavities
Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For a 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
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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].

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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or chemist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires March 2007.

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