
Stronger bones start here
Superior Plant Source
Superior Plant Source
Made from sustainably harvested marine algae
Unlike rock-based calcium, AlgaeCal's plant-based algae naturally contains ALL the nutrients your bones need, in a whole-food form your body can more easily absorb.
13 Minerals and Vitamin D
13 Minerals and Vitamin D
Calcium alone isn’t enough
More than just calcium. AlgaeCal naturally contains all 13 bone-building minerals. Then we add 1000 IUs of vitamin D3 to better absorb the calcium.
Stop Bone Loss
Stop Bone Loss
AlgaeCal does what others can’t - stop bone loss
Rock-based calcium can only slow bone loss. Only AlgaeCal's plant-based calcium actually stops bone loss.
THE SMARTER FORMULA
Whole-Food Nutrition Means Gentle Digestion
Traditional calcium supplements are made from milled limestone or marble, making them challenging to digest and absorb. But AlgaeCal's marine algae draws all the bone-building minerals from sea water and absorbs them for it's metabolic needs. That allows your body to properly assimilate the minerals and put them where they're needed: Your bones!
Stops Bone Loss
Traditional calcium supplements can't stop bone loss They don't have enough nutrients. But AlgaeCal is different. The proprietary blend of 13 organic minerals + Vitamin D are clinically proven to stop bone loss.
Clinically Supported
AlgaeCal is the ONLY calcium in the world that's clinically supported to stop bone loss. lt's true-no other calcium supplement can say that. So if stopping bone loss is your goal, AlgaeCal isn't an option. It's the ONLY option.
Plant-Based
Most calcium supplements are rock-based That's why you end up with bloating, gas, and constipation. AlgaeCal Plus, on the other hand is made from organic algae. lt's safe and has zero adverse side effects.
Essential Nutrients
Most calcium supplements only have calcium. But that's not enough to stop bone loss. AlgaeCal is different. lt's packed with 13 essential nutrients. That's why Algaeca works when traditional supplements don't.
Easy to Swallow
Our small, veggie-based capsules go down easy Plus, they're Dairy-Free, Soy-Free, Gluten-Free and Non-GMO. And to top it off, the packaging is recyclable. Better for you-and the planet.
Stops Bone Loss
Traditional calcium supplements can't stop bone loss They don't have enough nutrients. But AlgaeCal is different. The proprietary blend of 13 organic minerals + Vitamin D are clinically proven to stop bone loss.
Clinically Supported
AlgaeCal is the ONLY calcium in the world that's clinically supported to stop bone loss. lt's true-no other calcium supplement can say that. So if stopping bone loss is your goal, AlgaeCal isn't an option. It's the ONLY option.
Plant-Based
Most calcium supplements are rock-based That's why you end up with bloating, gas, and constipation. AlgaeCal Plus, on the other hand is made from organic algae. lt's safe and has zero adverse side effects.
Essential Nutrients
Most calcium supplements only have calcium. But that's not enough to stop bone loss. AlgaeCal is different. lt's packed with 13 essential nutrients. That's why Algaeca works when traditional supplements don't.
Easy to Swallow
Our small, veggie-based capsules go down easy Plus, they're Dairy-Free, Soy-Free, Gluten-Free and Non-GMO. And to top it off, the packaging is recyclable. Better for you-and the planet.
How to Take AlgaěCal
Take 3 capsules
daily, no more than
2 capsules at once
+
Take with
food
Our Clinical Studies
The ONLY calcium supplement clinically supported to increase bone density
Bone Study 01
Nutrition Journal
Bone Study 01
Nutrition Journal
216 Participants
2.18% Average bone density increase
AlgaeCal Plus and Strontium Boost increase adult bone density after 6 months.
Bone Study 02
International Journal of Medical Sciences
414 Participants
1.3% Minimum recorded bone density increase
Examines the effect of 3 AlgaeCal formulations on post-menopausal women’s bone density at 1 Year.
Bone Study 03
The Journal of the American College of Nutrition
172 Participants
7.3% Average bone density increases after 7 years
Women who took AlgaeCal Plus and Strontium Boost for 7 years showed continually Increasing bone density.
Backed by Science. Trusted by Doctors.
The World's #1 Bone Health Support Group
The AlgaeCal Community is an exclusive Facebook group for AlgaeCal customers. Join thousands of like-minded people who are working toward renewed bone health. It's a friendly non-judgemental space where you can ask questions, celebrate successes - and even make new friends.
- 45,000+ supportive members
- 100s of bone-building exercise videos
- Delicious recipes
- Live video sessions with experts
- Questions answered by bone health experts
See what customers are saying
We began with a revolutionary idea. Bone loss doesn’t have to happen. Yes, traditional calcium can slow it down. And that’s definitely a step in the right direction. But Dean Neuls, our founder, wasn’t satisfied with merely slowing bone loss. He wanted to stop it in its tracks. And better yet — actually increase bone density‡*.
So he went searching for a solution. He found it on a beach in South America: a rare ocean algae naturally rich in all 13 minerals your bones need. That discovery changed the calcium industry forever. And transformed the lives of thousands of women and men.
AlgaeCal became the only calcium supplement clinically supported to increase bone density.
Here’s the truth: there are hundreds of calcium supplements on the market. Some are made from rocks. Others from algae. But they all share one thing in common—not one has a single clinical study showing it can increase bone density. Not one!
And that’s what makes AlgaeCal unique. It’s the only calcium supplement in the world clinically supported to increase bone density. No other calcium supplement can make that claim. So if your goal is stronger bones, AlgaeCal isn’t just an option—it’s the only option.
Manufactured in the USA
16 Essential Nutrients
Plant Sourced
Clinically Supported
So if you’re worried about your bones, take heart: you can increase your bone density. In fact, we guarantee it.
That’s right. Of all the calcium supplements on the market, ours is the ONLY one that guarantees results. So when you take our popular Bone Builder Pack as directed, we guarantee you’ll see an increase in your bone density within 6 months. And if you don’t? We’ll refund every penny.
Imagine this: just 6 months from now, you could be calling your family and friends with the good news—your bone density has gone up!
Others have done it. We’d love for you to be next!
Meet Our Team
Why do people like AlgaeCal Plus?
Effective Bone Density Support – Unlike many calcium supplements that may simply slow bone loss, AlgaeCal is clinically shown to increase bone mineral density over time.
Complete, Science-Backed Formula – It combines plant-based algae calcium with essential co-factors like vitamins D3, K2 (MK7), magnesium, and trace minerals—all in one daily dose.
Superior Absorption – The natural, porous structure of marine algae calcium makes it easier for the body to absorb compared to rock-derived calcium (e.g., calcium carbonate).
Gentle on Digestion – Its whole-food form and balanced magnesium content help reduce the risk of constipation, a common issue with traditional calcium supplements.
Trusted Brand with Transparency – AlgaeCal provides access to published clinical studies, detailed ingredient explanations, and responsive customer support, building strong trust.
Supports Overall Wellness – Users often report benefits beyond bone health, including improved energy, nail strength, and a sense of proactive, natural healthcare.
Frequently Asked Questions
Is AlgaeCal right for me?
Is AlgaeCal right for me?
We recommend AlgaeCal for those who can’t take AlgaeCal Plus. If you’re taking an older anticoagulant prescription medication (blood thinner), you may not be able to take AlgaeCal Plus because it contains vitamin K2. And some older anticoagulants interact with vitamin K2.
But it’s worth noting there are two newer types of anticoagulant drugs on the market; XA Inhibitors and Direct Thrombin Inhibitors. These newer types of anticoagulants don’t interact with vitamin K2, making them safe to take alongside AlgaeCal Plus. But if it’s not possible to switch to a newer anticoagulant, AlgaeCal will be the best option for you.
What’s the difference between rock based calcium and plant based calcium?
What’s the difference between rock based calcium and plant based calcium?
The main difference between plant-based calcium and rock-based calcium is where they come from and how well our bodies absorb them. Rock-based calcium supplements are made from ground-up rocks like marble or limestone, which our bodies can't digest well. In fact, most calcium supplements on the market are made from rocks and lack important trace minerals that our bones need.
On the other hand, plant-based calcium comes from plants, which our bodies are naturally designed to digest. Our bodies recognize and absorb plant-based calcium more effectively than the calcium from rocks. This is because plants contain calcium in a form that is easier for our bodies to use.
How do calcium and vitamin D work together to strengthen bones?
How do calcium and vitamin D work together to strengthen bones?
These two nutrients work together in synergy to protect your bones. Calcium provides the material needed for bone structure, and vitamin D ensures that calcium is absorbed and utilized correctly by the body. Even if you're consuming enough calcium, a deficiency in vitamin D can hinder its effectiveness.
To get the most out of calcium and promote bone health, it's important to have sufficient levels of vitamin D. Both nutrients work hand in hand to maintain strong bones and reduce the risk of osteoporosis.
How many AlgaeCal capsules should I take and when should I take them?
How many AlgaeCal capsules should I take and when should I take them?
To gain the greatest bone-health benefits, take 3 AlgaeCal capsules a day. That’s the dose the clinical study participants who saw small increases in their bone density after one year taking AlgaeCal took. (See bone health “plan 1” at the link above).
We recommend splitting the daily 3 capsule dose into 3 servings throughout the day. And it’s best to take your AlgaeCal with food. That’s because taking calcium with food increases how well you absorb it. When you eat, your stomach produces acid that dissolves the minerals in AlgaeCal so they can be properly absorbed when they reach your intestinal tract.
In addition to calcium, what other minerals are included in AlgaeCal?
In addition to calcium, what other minerals are included in AlgaeCal?
AlgaeCal is a plant-based calcium supplement clinically supported to improve bone health. Sourced from an organic algae that naturally contains 13 bone-supporting minerals. In addition to calcium, each serving includes magnesium, potassium, boron, manganese, vanadium, phosphorus, copper, zinc, nickel, strontium, silicon, and selenium. It also includes a full dose of vitamin D3
What’s the difference between AlgaeCal and AlgaeCal Plus?
What’s the difference between AlgaeCal and AlgaeCal Plus?
AlgaeCal is a plant-based calcium supplement clinically supported to improve bone health. Sourced from an organic algae that naturally contains 13 bone-supporting minerals. In addition to calcium, each serving includes magnesium, potassium, boron, manganese, vanadium, phosphorus, copper, zinc, nickel, strontium, silicon, and selenium. It also includes a full dose of vitamin D3.
AlgaeCal Plus includes all of the above nutrients plus the vital addition of vitamin C and the all-important vitamin K2-7. K2-7 is an important bone-building nutrient that directs calcium toward your bones, where it’s needed. And keeps it away from your soft tissue, where it can cause heart attacks, strokes, and even Alzheimer's.
AlgaeCal is for those taking an older blood thinner like Coumadin or Warfarin and can't switch to a newer one with XA Inhibitors after discussing it with their doctor.
However, if you're not taking a blood thinner or you're already on a newer type, you'll get better bone-building results by using AlgaeCal Plus.