17 Algae Based Calcium Supplements You Need to Know

Discover the best algae based calcium supplement to boost your bones naturally. Quick, clear, and colorful choices for vibrant health.
BrandMy RatingPrice
Amazon Elements
Great Value Selection
9.2/10
Algaecal
Best for Osteoporosis Support
9.0/10
Algaecal
Best for Bone Density
9.2/10
Algaecal
Best for Vegan Bone Health
9.0/10
Plantfusion
9.0/10

Best Algae Based Calcium Supplement

Looking to boost your bone health with a splash of nature’s finest? Dive into the world of algae-based calcium supplements, where vibrant aquatic sources offer a clean, sustainable alternative to traditional options. Discover the best choices for a nutritious, eco-friendly boost that keeps your bones and the planet thriving.

Great Value Selection: Amazon Elements

Amazon Elements Calcium plus Vitamin D2, 65 Tablets (2 month supply) (Packaging may vary)
Highlights
Vegan and gluten-free
Supports bone health
Made in GMP facility

Algae harvested from the pristine Icelandic sea beds makes this calcium supplement a truly eco-friendly pick.

Supporting strong bones and immune health with a decent dose of calcium and vitamin D2, it hits the sweet spot for daily wellness.

Plus, it’s vegan and gluten-free—perfect for plant-based diets.

While the pills are a bit larger and contain some bio-engineered ingredients, their affordability and the clean, natural ingredients make them a great value choice.

Overall, a reliable, sustainable option for those wanting a quick boost in bone health without breaking the bank.

Be sure to also check out the best coral calcium supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Amazon Elements on Amazon

Best for Osteoporosis Support: AlgaeCal

AlgaeCal - Bone Builder Pack for Bone Density Increase, Clinically Supported Plant Based Calcium Supplement & Strontium, Vitamins K2 (100mg), D3 (1600 IU), Magnesium & 16 Essential nutrients
Highlights
Clinically supported to increase bone density
Plant-based with 16 nutrients
Guaranteed results or refund

AlgaeCal Plus stands out as the only calcium supplement backed by clinical trials that actually increase bone density.

Its plant-based formula with 16 essential nutrients ensures your bones get everything they need for strength and resilience—all without the rocky, traditional calcium tablet feel.

We love that it promises results within six months, thanks to the innovative Strontium Boost blend that targets the cells responsible for bone loss.

Plus, it's gentle, eco-friendly, and suitable for those seeking a natural approach.

For anyone serious about osteoporosis support, this is a playful yet powerful option.

Be sure to also check out the best galantamine supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for AlgaeCal on Amazon

Best for Bone Density: Algaecal

ALGAECAL - Plant Based Calcium Supplement with 13 Bone Supporting Minerals + Vitamin D3 (1000 IU) clinically Shown to Stop Bone Loss. Organic Calcium (750 mg), 90 Veggie Caps
Highlights
Eases stomach discomfort
Clinically supported effectiveness
Contains multiple nutrients

AlgaeCal is the only algae-based calcium supplement clinically proven to stop bone loss, not just slow it down.

Supported by over two decades of research, it combines dried organic algae—rich in 13 essential minerals—with vitamin D3 to truly nourish your bones.

Unlike many calcium formulas, it actively works to improve bone density over time, with endorsements from healthcare professionals backing its claims.

While it may be on the pricier side, its natural, plant-based ingredients and proven effectiveness make it a top contender for long-term bone health.

Be sure to also check out the best anandamide supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Algaecal on Amazon

Best for Vegan Bone Health: Algaecal

ALGAECAL Plus - Organic Red Algae Calcium Supplement for Women, Vitamin K2 (100mg), Vitamin D3 (1600 IU), Magnesium (350mg) & Trace Minerals, for Improved Bone Strength, Easy to Swallow, 120 Veg Caps
Highlights
Clinically supported increases bone density
Plant-based and natural
Multi-nutrient formula

AlgaeCal Plus stands out as "Best for Vegan Bone Health" thanks to its clinically proven ability to boost bone density.

Made from organic red algae, it’s packed with 16 vital nutrients, including vitamins D3 and K2-MK7, which help direct calcium exactly where it’s needed.

Its plant-based, natural formula is gentle on the body and suitable for vegan lifestyles.

While it does come with a higher price tag and medium-sized capsules, the credible research backing and comprehensive mineral blend make it a top pick for those serious about maintaining bone strength naturally.

Be sure to also check out the best vegan brain supplements for more options! Also, here is the price history so you know exactly when to buy!

Price history for Algaecal on Amazon

PlantFusion Calcium

PlantFusion Vegan Calcium, Premium Plant Based Calcium (1000mg) Sourced from Icelandic Red Algae, Plus Magnesium, D3, K2, and Boron, 90 Vegan Tablets
Highlights
Plant-based and vegan
Easy to swallow
High absorption ingredients

The PlantFusion algae-based calcium supplement shines with its innovative Aquamin source, offering superior absorption thanks to Icelandic red algae.

Each capsule delivers a potent blend of calcium, magnesium, and essential nutrients like Vitamins D3 & K2, plus boron and strontium, supporting bone density and strength.

The clean, plant-based formula is vegan, non-GMO, and free from artificial chemicals, making it perfect for health-conscious users.

While the pills are a bit large, their easy-to-digest profile and outstanding bioavailability make it worth the bite.

Overall, a well-rounded, eco-friendly choice for bone health!

Be sure to also check out the best calcium supplement for celiacs for more options! Also, here is the price history so you know exactly when to buy!

Price history for PlantFusion Calcium on Amazon

Piping Rock Red Mineral Algae

Piping Rock Red Mineral Algae | Vegetarian Calcium | 180 Capsules | Plant Based Plus Trace Minerals | Plus D3 1000 IU | Non-GMO, Gluten Free Supplement
Highlights
Plant-derived mineral complex
Contains Vitamin D
Vegetarian formula

The plant-derived mineral complex sourced from red algae offers a natural, eco-friendly way to boost your calcium intake.

Plus, the addition of Vitamin D helps your body absorb calcium more effectively. The vegetarian formula makes it a great choice for plant-based lifestyles, and the lab-tested ingredients give us confidence in its quality.

However, the larger capsule size might be a challenge for some, and the price is on the higher side compared to other options.

Still, if you're after a clean, sustainable supplement with added support from Vitamin D, this one’s worth considering.

Be sure to also check out the best calcium supplement for chickens for more options! Also, here is the price history so you know exactly when to buy!

Price history for Piping Rock Red Mineral Algae on Amazon

Holly Hill Calcium Algae Based Calcium Supplement

Algae Based Calcium 1,000 mg, 180 Tablets
Highlights
Rich in trace minerals
Supports bone strength
Vegan and organic

Aquamin mineralized red algae, harvested from Iceland's pristine Arctic waters, is a powerhouse for supporting bone health.

Packed with calcium, magnesium, and 72 trace minerals, it goes beyond basic calcium supplements.

Plus, it's organic, vegan, and free from artificial additives, making it a clean choice for health-conscious folks.

When combined with Vitamins D-3 and K-2, it truly enhances bone mineralization and density.

While it does come at a higher price point and requires consistent intake, the quality and trace mineral diversity make it worth considering for those wanting a natural, sustainable supplement to boost their bones.

Be sure to also check out the best akkermansia supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Holly Hill Calcium on Amazon

New Chapter Calcium

New Chapter Calcium Supplement - Bone Strength Organic Calcium with Magnesium, Vitamin D3+K2, 70+ Trace Minerals for Bone Health, Gluten Free, Easy to Swallow Slim Tablets - 120 Count
Highlights
Supports bone health
Organic & plant-based
Easy to swallow

Its organic, plant-based calcium derived from Red Marine Algae is a game-changer, offering 3-in-1 benefits that support bone density, teeth health, and even cardiovascular wellness.

The formulation includes fermented Vitamin D3 and K2, ensuring optimal absorption and calcium delivery directly where you need it most.

Plus, these slim, easy-to-swallow tablets are perfect for steady, reliable release.

Certified non-GMO, vegetarian, and ethically sourced from Iceland, it’s a smart, eco-friendly pick—ideal for anyone prioritizing purity and effectiveness in their supplement routine.

Be sure to also check out the best acemannan supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for New Chapter Calcium on Amazon

Sapling Calcium

Calcium Supplement - Whole Food with Vitamin K2 & D3, Magnesium, Zinc, Boron, Mineral Complex. Sourced Sustainably from Red Algae. for Bone Strength and Support. Non-GMO & Vegan 90 Capsules.
Highlights
Contains Vitamin K2 & D3
Vegan & Non-GMO
Environmentally friendly

Sapling Algae Calcium offers a powerful 600mg of elemental calcium sourced sustainably from red algae, making it a vegan and eco-friendly choice.

It’s enhanced with Vitamin K2 and D3, plus minerals like zinc, manganese, and boron to support overall bone health.

We love that every bottle helps plant a tree — a small step for you, a big step for the planet.

The sleek, GMO-free formula is free from artificial colors and flavors, though we did find the glass bottle a bit fragile.

Overall, a clean, responsible supplement with solid value.

Be sure to also check out the best luteolin supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Sapling Calcium on Amazon

NATURELO Calcium Algae Based Calcium Supplement

NATURELO Calcium Supplement - with Vitamin C, Vitamin D3, K2, and Calcium Magnesium Zinc for Bone Strength with Calcium 600mg - Plant-Based, 120 Vegetarian Capsules, Non-GMO, Soy & Gluten-Free
Highlights
Algae-based calcium source
Supports bone absorption
Vegan and natural

Naturelo's Bone Strength offers a clean, plant-based calcium sourced from marine algae, making it a fantastic choice for vegans and those seeking natural ingredients.

The inclusion of Vitamin D3, K2, and zinc ensures optimal absorption, guiding calcium straight to your bones where it’s needed most.

While it comes at a slightly higher price and has limited reviews, its formulation supports bone health effectively without artificial additives.

For those wanting a vegan-friendly, natural supplement with comprehensive nutrients, this one’s definitely worth considering.

Be sure to also check out the best luteolin supplements for more options! Also, here is the price history so you know exactly when to buy!

Price history for NATURELO Calcium on Amazon

Igennus Algae Calcium & Magnesium

Igennus Algae Calcium & Magnesium Supplement, Plant Based, High Absorption, K2 & D3, Non-GMO Red Algae Mineral Complex for Bone & Teeth Support, with Boron, Vegan, 60 Tablets
Highlights
High absorption rate
Plant-based nutrients
Supports bone health

The 2:1 calcium-magnesium ratio is well thought out, promoting long-term musculoskeletal health.

The split dosing ensures better absorption, which really makes a difference over time.

Plus, the plant-based calcium is 45% more soluble than traditional rock-derived options, meaning your body can utilize it more effectively.

The addition of boron, D3, and K2 adds a fantastic co-factor support, helping to transport calcium where it’s needed most—bones, not arteries.

And being certified vegan and hypoallergenic, it’s a smart choice for anyone with dietary restrictions.

Be sure to also check out the best broccoli supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Igennus Algae Calcium & Magnesium on Amazon

Peak Performance Calcium

Plant Based Calcium - Red Marine Algae Calcium Supplement with Vitamin C, D3, K, Magnesium, and Whole Food Vegetable Blend. Vegan Capsules for Bones and Joints. 120 Pills, Tablets
Highlights
Plant-based calcium
Rich in micro nutrients
Eco-friendly sourcing

Peak Performance’s algae-based calcium stands out from typical supplements because it’s entirely plant-derived, harvested from ecologically grown Wild Red Marine Algae in the UK.

This ensures you're getting a natural, mineral-rich source that’s free of fillers, synthetics, and animal by-products.

Plus, the formula is packed with essential micro nutrients like Vitamin C, D3, K, and Magnesium for maximum absorption and potency.

We love the commitment to sustainability and ethics, with vegan, gluten-free, and GMO-free ingredients, as well as their donation program supporting children in need.

It’s a clean choice for your bones and a responsible one too.

Be sure to also check out the best epicatechin supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Peak Performance Calcium on Amazon

Now Foods Red Mineral Algae Algae Based Calcium Supplement

NOW Foods - Red Mineral Algae Vegetarian Calcium - 180 Vegetarian Capsules
Highlights
Plant-based, vegetarian calcium
Contains 72 trace minerals
Made in the USA

Now Foods' algae-based calcium is a plant-powered option that stands out with its rich profile of 72 trace minerals, supporting overall mineral balance.

The vegetarian formula makes it a great choice for plant lovers or those with dietary restrictions.

Plus, it's made right here in the USA, ensuring quality control.

However, the large pill size and high vitamin D content may not suit everyone.

Still, if you're seeking a natural, mineral-rich calcium supplement, this one deserves a spot on your shortlist.

Be sure to also check out the best genistein supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Now Foods Red Mineral Algae on Amazon

LILICARE

Plant Based Calcium Supplement 600mg with Vitamin D3 K2, Zinc for Bone Strength, Sustainably Sourced Algae Calcium Magnesium 2:1 Ratio, Sugar Free Calcium Gummies 70+ Trace Minerals, Vegan, 60 Counts
Highlights
High bioavailability
Easy-to-absorb algae
Delicious peach flavor

LILICARE's algae calcium gummies pack a punch with their high bioavailability and easy-to-absorb, marine-derived calcium.

The delicious peach flavor makes taking your daily dose a treat rather than a chore, and the all-in-one formula with Vitamin D3, K2, and Zinc ensures maximum bone support and overall health.

Plus, they're vegan, gluten-free, and made right here in the USA.

While some might find the initial taste a bit unfamiliar and notice the gummies drying out over time, the benefits far outweigh these minor quirks.

Overall, a smart, tasty choice for your supplement routine.

Be sure to also check out the best liposomal supplements for more options! Also, here is the price history so you know exactly when to buy!

Price history for LILICARE on Amazon

Supplements Studio

Plant-Based Calcium 500mg (Aquamin) – Vegan Calcium Magnesium Zinc D3 with Vitamin K2 & Organic Turmeric – Enhanced Bone and Muscle Health & Strength, Immune Support for Women & Men - 90 Count
Highlights
Natural algae-based calcium
Includes essential minerals
No fillers or additives

The plant-based calcium derived from sustainably harvested red marine algae is a game-changer, offering superior absorption and easy digestion.

The 7-in-1 complex, including magnesium, vitamin D3, zinc, turmeric, and black pepper, makes it a comprehensive choice for optimal bone and overall health.

Plus, with no fillers or unnecessary additives, it’s a clean, natural option for both women and men.

Made proudly in the USA, this supplement combines quality with a eco-friendly edge.

While some details on third-party testing are limited, its high ratings and robust mineral profile make it a top pick for plant-based calcium lovers.

Be sure to also check out the best corydalis supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Supplements Studio on Amazon

Carlyle Algae Based Calcium Supplement

Carlyle Plant Based Calcium with Vitamin K2, D3, Magnesium | 180 Vegan Caplets | Bone Strength Supplement | Non-GMO, & Gluten Free
Highlights
Plant-based calcium source
Easy to swallow pills
Includes essential vitamins

Its plant-based calcium derived from premium natural sources makes it an excellent choice for vegans and those seeking cleaner supplement options.

The easy-to-swallow caplets are convenient, and with added vitamins D and K2, they support optimal absorption and bone health.

Carlyle’s commitment to quality shines through—the capsules are laboratory tested and free from common allergens like gluten and artificial additives.

While it doesn't contain K2, its overall clean profile and promise of honest, well-made supplements make it a reliable pick for daily bone support.

Perfect for anyone prioritizing plant power and simplicity in their supplement routine.

Be sure to also check out the best cinnamon/chromium supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Carlyle on Amazon

Future Kind

Future Kind Vegan Calcium Supplement - Plant-Based Calcium Magnesium Supplement Sourced from Iceland for Teeth & Bone Support (60 Capsules)
Highlights
Easy to swallow capsules
Supports plant-based diets
Sustainable, natural source

Future Kind's algae-based calcium capsules are a game-changer for those seeking plant-powered bone support. Sustainably sourced from pristine Icelandic waters, these capsules are packed with 72 trace minerals, enhancing absorption and efficacy.

The vegan-friendly formula is free from GMOs, gluten, and artificial ingredients, making it a clean choice for health-conscious consumers.

While the vitamin D info could be clearer and the pill count a bit lower, the easy-to-swallow capsules and commitment to sustainability make this a standout option in the algae calcium sphere.

Be sure to also check out the best agmatine supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Future Kind on Amazon

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