Skeleton Pirate

Skeleton Pirate
Artist: LindaB


Have you experienced, or read about, negative, and even dangerous, side effects from Fosamax (alendronate), Boniva (ibandronate), Actonel (risedronate), and other bisphosphonates prescribed for osteoporosis? If you have, then rest assured there is a safe, effective treatment for this condition. Strontium, primarily in the form of strontium citrate, is taken orally once a day.

Visitors to my blog can leave comments or ask questions and can remain anonymous, if they wish. Their comments are relayed to my g-mail inbox. Below each post, the number of comments for that post is cited and underlined because it is a link. By clicking on that link below any post, a window opens so that a visitor can leave a comment. Ideally, visitors leave comments on posts most relevant to their comments. All comments to my posts are moderated by me.

Browse the posts and visit the link library of references.

Visit me at

Blog Archive

Thursday, January 22, 2015

Strontium Minerals Come from Mexico

Strontium (Sr) occurs in nature as mineral deposits of celestine (celestite) (strontium sulfate) and strontianite (strontium carbonate). Citric acid and citrate also occur in nature. The chelate strontium citrate (as provided in supplemental form) is made synthetically from strontium minerals and citrate.

Celestite is the most commonly used strontium mineral. The strontium compounds in the government report referenced below are strontium oxide, sr. hydroxide, sr. peroxide, sr. nitrate, and sr. carbonate.  

Import Sources (2009–12): Strontium minerals: Mexico, 100%. Strontium compounds: Mexico, 80%; Germany, 12%; China, 7%; and other, 1%. Total imports: Mexico, 87%; Germany, 8%; China, 4%; and other, 1%.

One hundred percent (100 %) of the strontium minerals imported into the U.S. come from Mexico. None of the strontium minerals imported into the U.S. come from China.

Some time ago, I wrote to Doctor’s Best and asked if its Strontium Bone Maker, a product I take, comes from China. A representative from the company said, “No, our product is U.S.-made.”  Well, that answer was true to a point. Doctor’s Best probably buys strontium citrate from another company that imports celestite from Mexico to make strontium citrate in the U.S. I had to do a lot of sleuthing on the internet to find this information.

I keep hearing from people concerned that the strontium they take, or are considering taking, comes from China. I’ve also read posts on osteoporosis forums from so-called “experts” who keep repeating false information about strontium coming from China. For these reasons, I decided to post this information, citing a U.S. government publication for import sources.

It would be possible for a company to import strontium compounds (sr. carbonate, sr. nitrate) manufactured in China and then make sr. citrate from those, but it is unlikely when the mineral, celestite (strontium sulfate), is available from Mexico. A mine in China is believed to be the only developed strontianite deposit in the world per Hong, Wei, 1993, Celestite & strontianite—Review of ore processing and exploration: Industrial Minerals, no. 309, June, p. 55, as cited in “Strontium” by Joyce A. Ober.

As already stated, the U.S. is not importing strontium minerals from China.
Other than the natural occurrence as mineral, strontium carbonate is prepared synthetically in one of two manners. First of which is from naturally occurring celestine also known as strontium sulfate (SrSO4) or by using soluble strontium salts by the reaction in solution with a soluble carbonate salt (usually sodium or ammonium carbonates). For example if sodium carbonate was used in solution with strontium nitrate:

Sr(NO3)2 (aq) + Na2CO3 (aq) → SrCO3 (s) + 2 NaNO3 (aq).


Since 100% of the strontium minerals imported into the U.S. come from Mexico, and only 7% of the strontium compounds come from China, there is only a small chance the strontium in your strontium citrate supplement came from China.

No comments:

Wandering Skeleton

Wandering Skeleton
Artist: Joel Hoekstra

Osteoporotic Bone

Osteoporotic Bone

How Strontium Builds Bones

Strontium is a mineral that tends to accumulate in bone. Studies have shown that oral doses of strontium are a safe and effective way to prevent and reverse osteoporosis. Doses of 680 mg per day appear to be optimal. See my "For More Information About Strontium" links section.

Osteoporosis is caused by changes in bone production. In healthy young bones there is a constant cycle of new bone growth and bone removal. With age, more bone is removed and less new bone is produced. The bones become less dense and thus more fragile.

Scientists believe that strontium works in two ways. It may stimulate the replication of pre-osteoblasts, leading to an increase in osteoblasts (cells that build bone). Strontium also directly inhibits the activity of osteoclasts (cells that break down bone). The result is stronger bones.

When taking strontium, be sure to take 1200 mg calcium, 1000 IU vitamin D3, and 500 mg magnesium daily. It is best to take strontium late at night on an empty stomach. Calcium and strontium may compete with each other for absorption if taken together.