What is AlgaeCal and How is It Different?
AlgaeCal is a brand of calcium supplements, most notably AlgaeCal Plus, derived from a marine red algae species called Mesophyllum superpositum. Unlike conventional calcium supplements sourced from ground-up rocks like limestone (calcium carbonate) or marble (calcium citrate), AlgaeCal's claim to fame is its natural, whole-food plant source. The company asserts that this plant-based source is more body-friendly and bio-accessible, containing not only calcium but also a spectrum of 13 essential bone-building trace minerals, including magnesium, boron, zinc, and potassium. AlgaeCal Plus further enhances this formula with added vitamins D3, K2 (as MK-7), and vitamin C. This multi-nutrient approach is marketed as superior to other supplements that often only provide calcium and vitamin D, and is claimed to increase, not just slow, bone mineral density.
Clinical Evidence: The Studies Behind the Claims
The company cites several clinical studies to back its efficacy. These studies, which are often open-label and sponsored by the manufacturer, have shown some notable results.
- Short-Term Study: An initial study involving over 200 adults found that AlgaeCal formulations, when combined with Strontium Boost, increased bone density by more than 2% on average over six months.
- One-Year Study: A separate study on postmenopausal women found that different AlgaeCal regimens led to increased bone density over a one-year period.
- Long-Term Study: The most significant finding comes from a 7-year longitudinal trial which reported a consistent, linear increase in bone density, averaging 1.04% per year, in women taking AlgaeCal Plus and Strontium Boost. The study also reported no adverse effects on cardiovascular risk.
It is important to note that while these results are promising, a potential limitation of such studies is the sponsoring company's involvement, which can introduce bias. Independent verification is always recommended.
Customer Experiences and Reported Side Effects
Customer reviews for AlgaeCal products are mixed, as is common with many supplements.
- Positive feedback: Many users report significant improvements, including increased bone density shown on DEXA scans, reduced pain, and alleviation of osteoporosis symptoms. Some appreciate the natural, plant-based source and a reported lack of side effects often associated with rock-based calcium, such as constipation or bloating.
- Negative feedback: Conversely, some customers report no noticeable improvement or even worsening symptoms. Side effects, while claimed to be less severe than with traditional calcium, can still occur, including gastrointestinal discomfort and headaches in some individuals.
AlgaeCal vs. Traditional Calcium: A Comparative Table
| Feature | AlgaeCal Plus | Calcium Carbonate | Calcium Citrate | |
|---|---|---|---|---|
| Source | Plant-based (marine algae) | Rock-based (limestone) | Rock-based | |
| Nutrient Profile | Comprehensive (Calcium + 12 trace minerals + Vitamins D3, K2, C) | Calcium and Vitamin D3 (often) | Calcium and Vitamin D3 (often) | |
| Claimed Efficacy | Increases bone density | Slows bone loss | Slows bone loss | |
| Bioavailability | High (pre-digested by algae) | Lower (requires stomach acid) | Higher (less dependent on stomach acid) | |
| Cost | High (premium priced) | Low (widely available) | Moderate | |
| Side Effects | Reported to be gentler, but some GI issues possible | Often associated with constipation, bloating | Generally fewer GI side effects than carbonate |
Breaking Down the Cost: Is the Premium Justified?
AlgaeCal products are considerably more expensive than basic calcium supplements, a factor that influences the 'worth it' calculation for many consumers. The company justifies this cost by highlighting its premium, sustainably harvested, whole-food source and the extensive formula containing 16 bone-supporting nutrients, compared to the simpler rock-based alternatives. The value proposition rests on the claim that it provides a superior, more effective solution, supported by clinical studies showing actual increases in bone mineral density. The company's money-back guarantee, which promises increased density within six months based on DEXA scans, aims to mitigate the risk of the high investment.
The Strontium Factor
For those with diagnosed bone loss, AlgaeCal often recommends combining AlgaeCal Plus with Strontium Boost. Strontium is a naturally occurring element found in bone, and the company claims its strontium citrate formulation accelerates the bone-building process. It is crucial to distinguish this from the pharmaceutical drug strontium ranelate, which was withdrawn in some regions due to potential cardiovascular side effects and requires careful medical supervision. Always consult with a healthcare provider before taking any strontium-containing supplement, especially if you have pre-existing health conditions or are on other medications.
Conclusion: Making Your Decision
Deciding if AlgaeCal is worth the money depends heavily on individual circumstances. For those with significant bone density issues seeking a natural, multi-nutrient solution and who have the financial means, the product, backed by its clinical studies and guarantee, could be a worthwhile investment. However, for those with milder concerns or budget constraints, cheaper calcium forms combined with a balanced diet may suffice. The decision should not be taken lightly and requires careful consideration of the cost, the available evidence (including potential limitations), individual health needs, and consultation with a healthcare professional.
Ultimately, AlgaeCal offers a unique, premium-priced alternative in the calcium supplement market. While studies cited by the company suggest it may be more effective at increasing bone density than traditional supplements, its higher cost and mixed user reviews mean it won't be the right choice for everyone. Consumers should weigh the potential benefits against the significant financial commitment and discuss their bone health strategy with a doctor.
Here is a PubMed abstract discussing the 7-year AlgaeCal clinical trial.
