Skip to main content

Top 6 Best Algae Calcium Supplements

Written by Andrew Le, MD

UpdatedOctober 24, 2024

Calcium is a vital mineral that helps the body to build and maintain the strength of our bones and teeth, to help our muscles and nerves function properly. Dairy products are well known means of getting calcium, but there is a wide range of calcium supplements on the pharmaceutical market. Some calcium supplements that have recently registered some level of consumption are the algae-based calcium supplements.

Marine algae calcium supplements are got from marine algae which contains high concentration of calcium and other minerals. The algae calcium sources are readily absorbed compared to other calcium sources and are particularly suitable for those with a sensitive digestion.

We devoted several hours comparing different products to assess possibility of the best supplements in the market. In the next sections, we will reveal the list of the most recommended algae calcium supplements.


ALGAECAL Plus - Organic Red Algae Calcium Supplement, Vitamin K2 MK7 (100mg), Vitamin D3 (1600 IU), Magnesium (250mg) & Trace Minerals, for Bone Health & Strength, Easy to Swallow, 120 Veggie Caps 120 Count (Pack of 1)

Editor's Choice

ALGAECAL Plus - Organic Red Algae Calcium Supplement, Vitamin K2 MK7 (100mg), Vitamin D3 (1600 IU), Magnesium (250mg) & Trace Minerals, for Bone Health & Strength, Easy to Swallow, 120 Veggie Caps 120 Count (Pack of 1)

ALGAECAL Plus has 16 nutrients for bones, minerals, emulsified Vitamins D3, K2-Mk7, Vitamin C except, clinically tested to boost bone density. Vegetable based capsules are light to swallow, safe from side effects commonly associated with dairy, soy, and gluten content. It is packaged in America, and the body of the packing is recyclable.

See Price on Amazon

If you are seeking easy-to-absorb calcium linked to bone health, then ALGAECAL Plus is the best natural plant-based calcium supplement.

Pros

  • Increase bone density
  • Plant based calcium supplement
  • Tested and approved

Cons

  • It is a bit expensive
  • The capsules are large

ALGAECAL Plus has 16 minerals for bone support, 13 of which support mineralization of the bone, vitamin D3 for calcium assimilation, K2-Mk7 for directing calcium to the bones and last but not least vitamin C to combat the cause of demineralization. All of these 16 nutrients are backed up by clinical science to help build bone densities and mark the new era for bones.

They are veggie based, small, round shaped, in the form of capsules that are easy to swallow, non-dairy, soy free,gluten free, and are made from non-GMO sources. ALGAECAL Plus is made in USA and the packing is also reusable/recyclable. It is perfect for women and men, those who seek strong bones and don’t wish to turn to unsafe treatments or medications.


Future Kind Vegan Calcium Supplement

Future Kind Vegan Calcium Supplement

See price on Amazon

We’ve tried various calcium supplements, and Future Kind Vegan Calcium Supplement stands out as one of the best.

Pros

  • 100% plant-based, sourced from red marine algae
  • Includes magnesium for enhanced absorption
  • Suitable for vegans and free from common allergens

Cons

  • Requires two capsules daily
  • Might not be suitable for those needing a higher calcium dose

Future Kind Vegan Calcium Supplement provides 60 capsules per bottle, with each serving (2 capsules) delivering 400 mg of calcium and 100 mg of magnesium. Sourced from red marine algae harvested off Iceland’s coast, this product ensures a clean, eco-friendly calcium source. The magnesium inclusion helps in calcium absorption, ensuring maximum benefit. It’s free of dairy, gluten, and GMOs, making it suitable for a wide range of dietary needs. Plus, the capsules are easy to swallow and gentler on the stomach compared to traditional calcium supplements.

We found that this supplement supports our bone and teeth health noticeably over time. The addition of magnesium boosts calcium absorption, and the fact that it’s plant-based aligns with our dietary preferences. It’s a solid option for anyone looking to improve bone health without compromising on ethical sourcing or quality. The only drawback is the two-capsule requirement, but the benefits far outweigh that minor inconvenience.


Sapling Algae Calcium Supplement

Sapling Algae Calcium Supplement

See price on Amazon

If you are seeking for a vegan and sourced calcium supplement which contains other important minerals and vitamins, then the Sapling Algae Calcium Supplement would be of great benefits for you.

Pros

  • This all in one formula contains 600mg of elemental calcium, vitamin K2 and D3, zinc, manganese and boron.
  • It is vegan, has no GMO ingredients, no gluten at all, no colorants or artificial flavors.
  • A good sustainability policy is practiced in the company by the planting of one tree for each of manufactured bottle.

Cons

  • The capsules are large and difficult to swallow.
  • It is a bit expensive.

Sapling Algae Calcium Supplement is an all-in-one solution and is an eco-friendly product. Due to the presence of vitamin K2 and D3 in this supplement , besides other minerals and Vitamins , this supplement is most suitable for those who need bone and joint support.

The vegan and non-GMO formula is also an advantage to people with special diets concerning what they consume. Nonetheless, it’s not for individuals who have issues with choking large capsules or for those who want a cheaper option of the supplement.


PlantFusion Vegan Calcium

PlantFusion Vegan Calcium

See price on Amazon

We recommend the PlantFusion Vegan Calcium if you’re seeking for a vegan calcium supplement that can be well absorbed without distress.

Pros

  • The special trademarked formula is Aquamin and is a type of nutrient-rich algae that is grown in the pure waters of nutrient-rich Iceland.
  • The formula has over 12 different supplements combined into one, including plant-based vitamin D3 and K2, boron and strontium.
  • It has a vegan certificate, GMO certificate, lactose-free, gluten-free, soy-free, free from artificial products and chemicals.

Cons

  • The pills are somewhat large
  • The supplement is a bit expensive

PlantFusion Vegan Calcium is a calcium/magnesium bone support supplement that is scientifically backed and trademarked source – and delivers a massive 1000mg per scoop. Plant sources of vitamins D3 and K2 for calcium absorption as well as trace minerals such as strontium and boron to form the bone matrix makes it the bone builder fusion.

The supplement is manufactured under cGMPs protocols and in line with US FDA. This entails that all the products, both ingredients and finished goods, are put through 3RD party analytical tests.

We give this supplement a two thumbs up and believe that anyone on the look out for a great vegan calcium supplement that is easy on the digestion system and easily absorbed by the body should give PlantFusion Vegan Calcium supplement a try.


New Chapter Calcium Supplement - Bone Strength Organic Calcium with Magnesium, Vitamin D3+K2, 70+ Trace Minerals for Bone Health, Gluten Free, Easy to Swallow - 120 Slim Tablets 120 Count (Pack of 1) 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 - 120 Slim Tablets 120 Count (Pack of 1) Calcium

See price on Amazon

If you are considering mineral based calcium supplement that is organic and easy to swallow, New Chapter Calcium Supplement MTHR Bone Strength Natural calcium + magnesium + vitamine D3 and K2 +70 trace minerals for bone health free from gluten – easy to swallow – 120 Slim Tablets 120 Count (Pack of 1) Calcium is a good choice.

Pros

  • Red Marine Algae is organically plant-based and contains bone supportive calcium, magnesium and 70 plus trace minerals.
  • The calcium tablets are slim and thus can be easily swallowed since it has a slow and steady release.
  • The expertly formulated supplement contains, Vitamin D3 to enhance absorption and Vitamin K2 to help move calcium to the bones that need it.

Cons

  • It is a bit expensive
  • May not be suitable for those with certain dietary restrictions

New Chapter Calcium Supplement - Bone Strength Organic Calcium with Magnesium, Vitamin D3+K2, 70+ Trace Minerals for Bone Health, Gluten Free, Easy to Swallow - 120 Slim Tablets 120 Count (Pack of 1) Calcium has only been in our regiment for a few months, and we have noticed a stark change in our current bone density.

The tablets can be swallowed easily and they don’t cause any unpleasant aftertaste. The controlled release of the calcium it implies that our bodies get a consistent supply of the nutrient all through the day.

The supplement appears to be very effective and containing many vitamins necessary for our body, it is slightly more costly than other bone plus calcium supplements on the market. Yet, such opinion stems from the fact that quality comes for a price, and in the case of this product, it is justified.


Citracal Slow Release 1200

Citracal Slow Release 1200

See price on Amazon

Citracal Slow Release 1200 is recommended for those wanting a good calcium supplement for bone strength.

Pros

  • Calcium Carbonate and Citrate together come in a pack of 1200mg that is well absorbed without the need to stress the stomach.
  • Comes with 1000 IU of vitamin D3 & 80mg of magnesium for bone wellness and to slow down bone aging.
  • It gradually and steadily delivers small doses of calcium and vitamin D3 by the one dose taken daily.

Cons

  • The caplets are quite large
  • The supplement may arrive warm during the summer month

Citracal Slow Release 1200 is one of the best calcium supplements that we came across that is well absorbed with less chance of upsetting the tummy. Calcium Carbonate and Citrate with vitamin D3 and magnesium makes it possible to defend bones and successfully resist aging.

Slo-Cal Technology also guarantees that the supplement gradually discharges minimum doses of calcium and Vitamin D3 within a single dosage. Nonetheless, the caplets are large and can be a bit uncomfortable to swallow especially to persons with sensitive throat.

Buying Guide

When selecting the best algae calcium supplement, there are some things you need to consider to ensure you are getting a high-quality product that meets your needs. Here are some of the key factors to keep in mind:

Source of Algae

When determining the kind of calcium supplement to take, you should consider the source of the algae. The best product to choose should incorporate the best algae which are Lithothamnion or Algas calcareas, which are sourced sustainably. The types of algae within these categories are also usually high in calcium as well as other minerals and are easily assimilated into the body.

Calcium Content

The amount of calcium per serving also bases the sort of supplement to bring into the body. Some brands have higher calcium concentrations; therefore, look for these brands to meet the recommended amount of calcium intake. It is considered that calcium percentage should be indicated on the label.

Other Nutrients

Most calcium-containing algae suppliments contain other nutrients like magnesium, vitamin D, and vitamin K2. These nutrients are useful for bones and other parts of the body so it must be useful to have a product with as many positive nutrients as possible.

Frequently Asked Questions

What are the benefits of algae calcium supplements over traditional calcium supplements?

Algae calcium supplements have advantages over other calcium supplements. It is argumentatively more turnable that they are easily absorbed by the body and is natural source of calcium. They also include other minerals that are important in the body such as magnesium, vitamin D, and vitamin K2 important for bone health.

What are some of the best calcium tablets for women's bones?

Some of the best calcium tablets for women's bones include Garden of Life Vitamin Code Raw Calcium, Nature’s Plus Source of Life Garden Bone Support Calcium, and New Chapter Bone Strength Take Care.

What is the best algae-based calcium supplement for osteoporosis?

AlgaeCal Plus is considered the best calcium supplement for osteoporosis deriving from algae. It also has clinical benefits on increasing the bone mineral density and the resultant decrease in the rate of fractures.

Are there any side effects of taking algae calcium supplements?

Algae calcium supplements in most cases do not cause side effects, and severe complications are rare. Nonetheless, there are certain side effects associated with such intake like; Diarrhoea or constipation and bloating.

How effective is AlgaeCal for treating osteoporosis?

AlgaeCal has been clinically proven to strengthen the bones, increases mineralization, and protects from fractures in patients with osteoporosis. Seven studies compared the use of cholecalciferol supplements to using normal calcium supplements, and they determined that this is a better option.

What are the differences between algae-based calcium and calcium citrate?

Algae-based calcium is a natural source of calcium that is easily absorbed by the body. Magnesium, vitamin D and vitamin K2 are other minerals found in this calcium though they are also available in other vegetables. Calcium citrate, for instance, is a type of calcium that is artificially made, and it can hardly be as much assimilated in the body as the natural form of calcium; this type of calcium can lead to certain stomach upsets.

Affiliate Disclosure:
The links provided may earn us a small commission at no additional cost to you if you choose to purchase the recommended product. This support allows our research and editorial team to continue providing high-quality recommendations. As a participant in the Amazon Services LLC Associates Program, an affiliate advertising initiative, we are able to earn advertising fees through providing links to products on Amazon.com. Please rest assured that we only recommend high-quality products.