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Strontium

Posted Mar 16 2012 10:15pm
Posted on 2012-03-15 15:18:14 in Bone and Dental | Desk Reference | Minerals | Osteoporosis |

Element Name:  Strontium

Symbol:  Sr

Atomic Number:  38

Atomic Weight:  87.62   

Element Category:  Alkaline earth metal

General Description:  
Strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when exposed to air. It occurs naturally in the minerals celestine and strontianite. While natural strontium is stable, the synthetic 90Sr isotope is present in radioactive fallout and has a half-life of 28.90 years.

Effects on Human Body: 
Strontium, when combined with ranelic acid, forms strontium ranelate.  A number of studies suggest that this drug aids bone growth, increases bone density, and lessens vertebral, peripheral, and hip fractures.

Lakatos P.  Pharmacologic treatment of osteoporosis--2011. Orv Hetil. 2011 Aug 14;152(33):1320-6.

Genuis SJ, Bouchard TP. Combination of Micronutrients for Bone (COMB) Study: Bone Density after Micronutrient Intervention. J Environ Public Health. 2012;2012:354151. 


In the United States, salts of strontium such as strontium citrate and strontium carbonate are available as over-the-counter dietary supplements. Large-scale randomized clinical trials have not yet established long-term safety and efficacy.

Radioactive strontium, Strontium-90 (90Sr), can lead to various bone disorders and diseases, including bone cancer.

Li WB, Hollriegl V, Roth P, Oeh U.Influence of human biokinetics of strontium on internal ingestion dose of 90Sr and absorbed dose of 89Sr to organs and metastases.  Radiat Environ Biophys. 2008 Apr;47(2):225-39.  


Tolstykh EI, Shagina NB, Degteva MO, Anspaugh LR, Napier BA. Does the cortical bone resorption rate change due to 90Sr-radiation exposure? Analysis of data from Techa Riverside residents. Radiat Environ Biophys. 2011 Aug;50(3):417-30. 


Read More:
Strontium: Breakthrough Against Osteoporosis     

Radioactive Strontium Found in Fish

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