Strontium citrate (Algaecal) and fractures

Thank you for your reply. I have read that there is a ten year time limit for taking the metal based strontium. Would this hold true gor strontium from algae? It is interesting to note vitamin label does not label strontium as a citrate but as a organic algae

That is interesting. The labeling is a little misleading. It makes me think that Strontium is a natural Calcium but it is not Calcium. I do want to research this out more. People that live on Okinawa are healthier longer. Even in their 90's they are active and healthy. They eat a lot of fish and I wonder about seaweed/algae that is filled with tiny marine animals and shells. Interesting.!

I will be calling vitamin company to see if it’s truly from organic algae or a metal. I know it does come from a metal but that is a different strontium(I think).

@nene78 I'm about as far from an expert as possible in chemistry but a simple lookup will tell you that strontium is a metal. You may want to get it from algae which has absorbed it rather than from a chunk of rock but it is still a metal.
From Wikipedia: " An alkaline earth metal ... Strontium is a divalent silvery metal with a pale yellow tint whose properties are mostly intermediate between and similar to those of its group neighbors calcium and barium.[10] It is softer than calcium and harder than barium. "

To me the important points are:
How well does it work to prevent fractures?
If it increases bone density is it building stronger and functional bone?
What are the possible side effects?
Are the problems with strontium ranelate likely to occur with strontium citrate?
Are the studies of strontium ranelate directly relatable to strontium citrate?

I admit I haven't investigated strontium enough and I do intend to investigate more.
I do know that the logic that strontium citrate is natural and meds are unnatural is not a sound basis for thinking it's ok to take. Large doses of trace minerals can be quite dangerous no matter how "natural" they are. The 640mg dose of strontium citrate is way way greater than the 1-5mg we would likely get per day in food.
Still, it would be great if strontium citrate was really an effective agent for bone thinning.

One may want to look at the levels in drinking water and that an upper limit is being considered.
https://www.usgs.gov/news/strontium-us-groundwater-used-drinking-water-source

@nene78 I'm about as far from an expert as possible in chemistry but a simple lookup will tell you that strontium is a metal. You may want to get it from algae which has absorbed it rather than from a chunk of rock but it is still a metal.
From Wikipedia: " An alkaline earth metal ... Strontium is a divalent silvery metal with a pale yellow tint whose properties are mostly intermediate between and similar to those of its group neighbors calcium and barium.[10] It is softer than calcium and harder than barium. "

To me the important points are:
How well does it work to prevent fractures?
If it increases bone density is it building stronger and functional bone?
What are the possible side effects?
Are the problems with strontium ranelate likely to occur with strontium citrate?
Are the studies of strontium ranelate directly relatable to strontium citrate?

I admit I haven't investigated strontium enough and I do intend to investigate more.
I do know that the logic that strontium citrate is natural and meds are unnatural is not a sound basis for thinking it's ok to take. Large doses of trace minerals can be quite dangerous no matter how "natural" they are. The 640mg dose of strontium citrate is way way greater than the 1-5mg we would likely get per day in food.
Still, it would be great if strontium citrate was really an effective agent for bone thinning.

Here's a deep dive into the studies regarding strontium:
https://pmc.ncbi.nlm.nih.gov/articles/PMC11007224/
Of note - no testing of strontium citrate and the possible detrimental effects on people with kidney issues. Also, the caution that ant advances from taking strontium reverse if you stop.

@nene78 I'm about as far from an expert as possible in chemistry but a simple lookup will tell you that strontium is a metal. You may want to get it from algae which has absorbed it rather than from a chunk of rock but it is still a metal.
From Wikipedia: " An alkaline earth metal ... Strontium is a divalent silvery metal with a pale yellow tint whose properties are mostly intermediate between and similar to those of its group neighbors calcium and barium.[10] It is softer than calcium and harder than barium. "

To me the important points are:
How well does it work to prevent fractures?
If it increases bone density is it building stronger and functional bone?
What are the possible side effects?
Are the problems with strontium ranelate likely to occur with strontium citrate?
Are the studies of strontium ranelate directly relatable to strontium citrate?

I admit I haven't investigated strontium enough and I do intend to investigate more.
I do know that the logic that strontium citrate is natural and meds are unnatural is not a sound basis for thinking it's ok to take. Large doses of trace minerals can be quite dangerous no matter how "natural" they are. The 640mg dose of strontium citrate is way way greater than the 1-5mg we would likely get per day in food.
Still, it would be great if strontium citrate was really an effective agent for bone thinning.

You may be interested in reading the “deep dive” med publications cited above. Looks promising