The question of whether AlgaeCal's strontium is safe is rooted in a widespread confusion between two different forms of the mineral: strontium citrate and strontium ranelate. While both have been studied for their effects on bone health, their safety profiles are vastly different. AlgaeCal uses the natural and widely available supplement form, strontium citrate, not the controversial prescription drug, strontium ranelate.
Natural Strontium Citrate vs. Prescription Strontium Ranelate
The most important factor in assessing the safety of AlgaeCal's strontium is recognizing that it is the citrate form. Strontium is a trace element found naturally in soil and food. AlgaeCal's Strontium Boost provides a specific dose of strontium citrate to complement its plant-based calcium supplement.
In contrast, strontium ranelate is a pharmaceutical drug that was once used to treat osteoporosis in Europe but is now restricted due to safety concerns. Unlike strontium citrate, strontium ranelate has been associated with serious health risks, including cardiovascular issues and blood clots. It is crucial to understand these differences when evaluating any product containing strontium.
The Mechanism of Strontium for Bone Health
Stable strontium, when incorporated into bone, has a unique dual action that helps to improve bone mineral density (BMD).
- Stimulates Osteoblasts: Strontium encourages osteoblasts, the bone-building cells, to increase new bone formation.
- Inhibits Osteoclasts: It simultaneously slows down the activity of osteoclasts, which are the cells responsible for breaking down old bone.
This combined effect helps rebalance the natural bone remodeling process, leading to a net gain in bone mass over time. This mechanism applies to both forms of strontium, but the attached compound (citrate vs. ranelate) dictates the overall safety profile.
Safety Profile of AlgaeCal's Strontium Citrate
Clinical studies, many involving AlgaeCal products, suggest that the strontium citrate form is generally well-tolerated and safe for most healthy individuals at the recommended dosages. A 7-year study on AlgaeCal Plus and Strontium Boost found that participants experienced increased bone density with no reported adverse side effects. However, specific precautions and potential side effects should be noted.
- Gastrointestinal Issues: Some users may experience mild digestive side effects, such as diarrhea, particularly when starting supplementation.
- Kidney Function: Strontium is eliminated by the kidneys. Individuals with pre-existing kidney problems or chronic kidney disease should avoid strontium supplements, as buildup can occur.
- Interactions: Strontium competes with calcium for absorption. For optimal effectiveness, strontium citrate should be taken at least two hours away from calcium supplements or high-calcium foods.
- DEXA Scan Results: Strontium can affect bone density scans, causing an overestimation of BMD. This is because strontium is denser than calcium and replaces some calcium in the bone matrix. Most experts suggest adjusting DEXA results downward by approximately 10% to account for this effect, but even with this adjustment, studies still show true increases in BMD with strontium supplementation.
Potential Risks and Cautions
While generally safe, there are specific populations for whom strontium supplements are not recommended:
- Pregnant or Breastfeeding Women: Due to a lack of sufficient safety data, strontium supplements should be avoided during pregnancy and lactation.
- Individuals with Pre-existing Conditions: Those with a history of cardiovascular disease, blood clotting disorders, or advanced kidney disease should avoid strontium supplements.
- High Dosages: Very high doses of elemental strontium, well beyond the recommended supplement amount, could potentially be harmful to bones.
Comparison: Strontium Citrate vs. Strontium Ranelate
| Feature | Strontium Citrate (AlgaeCal) | Strontium Ranelate (Protelos) | 
|---|---|---|
| Source/Form | Natural, over-the-counter supplement | Synthetic, prescription drug | 
| Primary Use | Bone mineral density support | Osteoporosis treatment (in some countries) | 
| Availability | Over-the-counter in most regions, including the U.S. | Restricted in Europe; not approved in the U.S. or Canada | 
| Serious Side Effects | Generally rare; typically mild GI issues | Cardiovascular risks, blood clots, DRESS syndrome | 
| Interaction with Calcium | Must be taken separately from calcium for optimal absorption | Must be taken separately from calcium for optimal absorption | 
| Regulation | FDA does not evaluate dietary supplements for safety or efficacy | Heavily regulated; withdrawn or restricted in many regions | 
Conclusion: Making an Informed Decision
For most healthy individuals seeking to support bone health, AlgaeCal's strontium citrate is considered safe when taken according to directions, particularly the separation from calcium intake. The product's safety is often confused with that of the pharmaceutical drug strontium ranelate, which carries serious and well-documented risks. However, individuals with specific health conditions, such as kidney, heart, or blood clotting issues, should avoid strontium supplements. As with any dietary supplement, consulting a healthcare provider before starting AlgaeCal Strontium Boost is the best way to ensure it is appropriate for your individual health needs. Given that the long-term effects on certain populations and potential medication interactions are still being researched, medical supervision is always recommended.
Choosing a Safe Supplement Protocol
When considering AlgaeCal with strontium, adopting a safe protocol involves:
- Consulting a Doctor: A healthcare professional can assess your specific health profile, especially if you have pre-existing conditions, to determine if strontium citrate is right for you.
- Following Dosing Instructions: Always adhere to the recommended dosage and timing instructions to maximize absorption and reduce the risk of side effects.
- Timing is Key: Take strontium citrate and calcium supplements at least two hours apart to prevent competition for absorption.
- Monitoring Health: Pay attention to any new symptoms and discuss them with your doctor. This is particularly important for individuals with any underlying health concerns.
- Considering Alternatives: For those who cannot take strontium, other bone health strategies, including diet, exercise, and alternative supplements, are available.
Following these guidelines helps ensure a safe and effective approach to using AlgaeCal's strontium citrate to support bone health.
Note: This article is for informational purposes only and does not constitute medical advice. Please consult a qualified healthcare professional before beginning any new supplement regimen.