Strontium citrate (Algaecal) and fractures

Posted by pami @pami, Apr 15, 2024

I am looking to see if there are any studies done that show a reduced chance of fracture from using Strontium citrate (Algaecal) as opposed to calcium. Everything I have read only mentions increase of density using it. Does anyone have doctor input or a study showing an decrease in bone fractures?

Interested in more discussions like this? Go to the Osteoporosis & Bone Health Support Group.

@windyshores

The podcast posted by @vgkime confirms the effect on DEXA scores (he said Z scores which made me wonder about him, since we all look at T scores, but....) but says that the goal of treatment is not higher DEXA scores, but denser bone and less fracture risk. He says strontium achieves both. He clarifies that is not a nutritional supplement but a medicinal one. The DEXA score CAN be adjusted but he did not mention that.

One other point he made was that it should be reserved for older women dealing with bone density deficiencies, not for younger women.

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Yes, the dexa score for strontium is consistently adjusted by 10% in all research. This is to account for the way that radiation flows thru the denser strontium.
The dexa 10% skew for strontium users is really a non argument and concern now with REMS and TBS showing consistently good scores and microarchitecture for strontium users.
In addition the 10% skew for strontium users is only pertinent with the first score which is comparing strontium treated bone vs non strontium treated previous dexas. After that with each new dexa you just need to see that the dexa score continues to improve and that you are not fracturing.
But with the advent of more available REMS and even TBS, we will be discussing this less and less.

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@nene78

Thank you for your reply and information. My vitamin is called MyKind and is a plant based Cal, K2 Mag and Strontium vitamin. Not sure how it compares to Algaecal.

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I believe that you are referring to this product:
Garden of Life Organics Plant Calcium Supplement Made from Whole Foods with Magnesium, Vitamin D as D3, and Vitamin K as MK7, Gluten-Free
It contains 6mg of strontium which is provided by the algae. This is a vitamin dose level.

Most of the strontium discussion which we are having centers around a therapeutic dose of strontium, research based level to impact osteoporosis; this is usually 680mg daily sometimes transitioning to a maintenance dose of 340mg.

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Right! All I can say I have been taking 4/day in addition to a plant based multi, and in one year gained 5% bone density. At that dose. I will be going for a new dexa in feb-will report results. I think the 680 dose is for strontium renalade not from algae. Could there be that much if a difference?

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@kathleen1314

Yes, the dexa score for strontium is consistently adjusted by 10% in all research. This is to account for the way that radiation flows thru the denser strontium.
The dexa 10% skew for strontium users is really a non argument and concern now with REMS and TBS showing consistently good scores and microarchitecture for strontium users.
In addition the 10% skew for strontium users is only pertinent with the first score which is comparing strontium treated bone vs non strontium treated previous dexas. After that with each new dexa you just need to see that the dexa score continues to improve and that you are not fracturing.
But with the advent of more available REMS and even TBS, we will be discussing this less and less.

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But @mcchesney the study that was cited above measured increase in DEXA, which may be a false increase. I would like to see a study on improvement in REMS and TBS if those are now available to more people.

The suggested therapeutic dose for strontium citrate is 680mg, the dose in Strontium Boost.

I am not at all critical of strontium use and tried it 18 years ago for a short time,. I would love good news given my sensitivities to most med options (which I am doing anyway in an adjusted fashion). But I need more than a study showing increase in DEXA on strontium since we know it is denser than calcium and throws the scan results off, I cannot afford to try a year and compare results done the second time with the first- bones can't afford that risk! In any case it may work too slowly for those of us with severe osteoporosis.

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@windyshores

But @mcchesney the study that was cited above measured increase in DEXA, which may be a false increase. I would like to see a study on improvement in REMS and TBS if those are now available to more people.

The suggested therapeutic dose for strontium citrate is 680mg, the dose in Strontium Boost.

I am not at all critical of strontium use and tried it 18 years ago for a short time,. I would love good news given my sensitivities to most med options (which I am doing anyway in an adjusted fashion). But I need more than a study showing increase in DEXA on strontium since we know it is denser than calcium and throws the scan results off, I cannot afford to try a year and compare results done the second time with the first- bones can't afford that risk! In any case it may work too slowly for those of us with severe osteoporosis.

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send me the study which to which you are referring.
I think that you are misunderstanding the over read by dexa for strontium. It is not that it is a all a false increase it is that 10% is a false read. So yes, your bones need to increase by more than 10% on your first dexa comparing your strontium bones to your previous dexa read of non strontium bones. Most strontium users increase by more than 10% and many stop fracturing. In dexas after that first one you are comparing dexa with strontium to dexa with strontium so any increase is an increase, as long as it is over the 10%.
The 10% over read is exactly what researchers use when looking at dexa reads for strontium users so this is a standard formula for dexas and strontium users.
But as I said the moaning over the dxa read is all moot now; TBS and REMs has shown consitently that strontium bones are good dense bones with good bone quality. So why would anyone care if the dexa machine falsely overreads by about 10%?
I posted a TBS study on strontium bone density and bone quality earlier. I will repost below with a long time strontium user's tbs results also...
The REms results are all personal stories at this point. I have not seen a single strontium user who has had a bad result or lower than their dexa result on the Rems machines. Still, time will be needed to accumulate enough strontium users using Rems to show a statistical applicable number.
https://strontiumforbones.blogspot.com/2024/11/dexa-bone-density-axial-skeleton-with.html
Strontium was in the top comparison of DEXA and Microarchitecture with Prolia and Forteo. found on Page 7 panoramaortho.com, see chart attached...... panoramaortho.com,

We all have to make the best decisions for ourselves, and no one should feel compelled to take any drug or supplement with which they do not feel comfortable. I am finding that a drug regime is as much about mental comfort as it is about the research.
Are you feeling pressured to take strontium? Most of us support any drug or supplement which an individual feels comfortable with and which feels less risky to that person.
But yes, strontium has a more natural and probably slower progression to go with the fewer side effects scenario. I understand completely if you are fracturing and have a very low bone density that you feel more comfortable with a pharma med.
You seem to feel comfortable with your pharma med. Why are you posting concerns about strontium?

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