Unlike rock-based calcium, Algaecal Boca actually stops bone loss and builds new bone. In head-to-head tests with leading calcium brands, AlgaeCal outperformed calcium carbonate and calcium citrate by 300 and 400 percent in their ability to increase DNA synthesis of osteoblasts (bone cells that make bone).
This product contains 13 bone-supporting minerals from algae plus strontium. If you take a thyroid medication or antacid, please separate these products by at least four hours to avoid decreased absorption.

AlgaeCal is a unique plant source calcium and mineral complex derived from a South American marine algae called Algas Calcareas(tm). Like vegetables, marine algae absorb minerals from the ocean, but unlike traditional plant sourced calcium, it’s rich in 13 bone building nutrients (including calcium), including magnesium, strontium, boron and silicon. In clinical trials, it was shown to increase bone density in 80 year olds – a result that’s rare for any supplement.
It’s also gentler than rock-based calcium, minimizing digestive issues like gas and cramping. Plus, it’s USP verified to ensure quality and purity standards.
The company is now bringing AlgaeCal to retail in OsteoStrong fitness centers nationwide starting this month. It will be available in branded displays, along with Triple Power Omega 3 Fish Oil and the Bone Builder pack. The Bone Builder pack includes AlgaeCal Plus with Strontium Boost, the only combination clinically supported to increase bone density on DEXA scans in just 6 months or your money back. Other calcium products on the market only slow bone loss, but the company claims its product is the only one clinically supported to build bones. It does this by adding the research proven ingredient, strontium, which is believed to help prevent bone fractures and increase bone density when taken with calcium.
AlgaeCal Plus
The most comprehensive bone-supporting nutrients in a natural whole-food formula. Unlike traditional rock-based calcium supplements, which only slow bone loss, AlgaeCal Plus actually stops bone loss and builds new bone!*
Each capsule provides organic ocean calcium (Mesophyllum Superpositum), 15 other bone-supporting minerals and vitamins, and a full spectrum of plant-based nutrients. Vitamin D is essential for building strong bones, and AlgaeCal Plus contains the optimal amount your body needs — 1,600 IU per serving! Magnesium is another key bone-building mineral, and studies show that people with healthy magnesium levels have higher bone density. In addition, alfalfa is a key herb for helping with bone health — it has been shown to provide the body with a natural form of calcium, as well as help reduce inflammation that can slow down bone formation.
Strontium is included in AlgaeCal Plus because it was the first — and still only — calcium clinically supported to increase bone density. Many of the comments you see on our website about improved DEXA scans are probably due to strontium, which can drive up bone density readings — a very positive result!
This unique formulation was developed by Harvard-trained medical experts, and its ability to increase bone density has been validated in three clinical studies. AlgaeCal Plus contains no artificial flavors or colors, and no added sugars or gluten. If you take thyroid medication, antacids or antibiotics, it’s important to separate them from AlgaeCal Plus by 4 hours to avoid decreased absorption. If you take iron supplements, it’s also important to separate them from AlgaeCal by 2 hours to avoid reduced absorption, as the vitamin K2 in AlgaeCal Plus can interfere with some anticoagulant medications.
AlgaeCal for Women
Women of all ages are experiencing stronger, more vibrant bones with AlgaeCal, even in post-menopausal years. They are feeling better about their bodies and moving like younger versions of themselves again. Their DEXA bone scans show the results, and their friends and families are noticing, too.
Unlike traditional calcium supplements that are made from limestone – a lifeless rock – AlgaeCal is sourced from a kiwi-sized South American marine red algae called Lithothamnion superpositum. This unique algae is sustainably hand-harvested, sun dried and milled into a powder without any extraction or additives. The result is a whole food supplement that is easy for your body to absorb, and it is rich in 13 essential bone-supporting minerals.
AlgaeCal is clinically supported to stop bone loss, and it was the first – and still only – plant-based calcium clinically supported to increase bone density. The AlgaeCal plant-based formula was shown to increase bone density 1.6 times more than the market-leading calcium carbonate in a 6-month comparative study. This is because the AlgaeCal plant-based calcium supports bone building by providing all 13 of the necessary bone supporting minerals – not just calcium.
Those additional essential bone-building minerals include magnesium, potassium, strontium, boron, manganese, phosphorus, zinc and vitamin K2. The research also showed that AlgaeCal increases the number of osteoblast cells (the bone-forming cells) in the hips and spine, compared to the control group.
The studies done with AlgaeCal showed that bone density gains were consistent and linear over a 7 year period. This is an important finding because most other types of calcium only slow down age-related decrease in bone density.
The studies also did not cause any adverse changes in blood lipids or other cardiovascular risk factors. These are significant findings given that other long-term studies of traditional calcium have shown some concern about this.
AlgaeCal for Men
Unlike traditional calcium supplements that are typically made from crushed rock, AlgaeCal is live-harvested from the algae Lithothamnion superpositum. These ocean algae contain 13 of the minerals scientifically shown to support healthy bones.
This plant whole-food supplement is clinically supported to increase bone mineral density (BMD) over baseline. No other calcium supplement can make this claim.
BMD increases were seen in 3 groups of post-menopausal women taking different AlgaeCal formulas. Compared to the conservative estimate of bone loss that occurs in this population, these three groups had an average increase in BMD of 1.3%. This is an extraordinary result since traditional calcium supplements only slow down the loss of BMD.
In head-to-head tests, AlgaeCal significantly increased the amount of calcium absorbed by cultured human osteoblast cells. It also significantly reduced the amount of acid produced by these cells. These results suggest that the calcium in AlgaeCal is more “bone cell friendly” than traditional limestone based calcium supplements.
This is important because excessive acid production can interfere with the proper functioning of the bone cells that build and maintain your bones.
AlgaeCal also contains a full dose of Vitamin D3, the other essential bone building nutrient. It is highly absorbable and the only form of Vitamin D3 that has been shown to help with bone health. It is also a precursor to active Vitamin K2 (in the form of MK-7).
A third key ingredient in AlgaeCal is boron, a mineral that supports healthy bones at any age. Boron works with calcium and magnesium to prevent the dreaded bone-density plateau that occurs in some people as they age.
Finally, a healthy gut is also necessary for bone health. To this end, AlgaeCal includes Betaine HCI 650 mg and Gentian root extract 20 mg. This combination has been shown to help with stomach acid production, which in turn can increase the absorption of calcium from food and supplements.
This is a great product and I would recommend it to anyone interested in improving their bone health. It’s gentle on the stomach and it’s a much better choice than the standard calcium supplements that are available in most stores.