Natural Calcium
400mg High-Dose

Calcified Atlantic Seaweed®

Calcified Atlantic Seaweed® provides highly bioavailable natural calcium sorbate from lithothamnion red algae with 400mg elemental calcium per capsule for individuals with increased calcium needs. With 63+ minerals and trace elements including magnesium, iron, and iodine. Vegan, laboratory tested, made in Germany. 2x120 capsules
  • Calcium from calcified Atlantic red algae (Lithothamnium coralloides)
  • At least 400 mg elemental calcium per capsule (min. 32%)
  • Calcium in a natural complex with over 63 minerals and trace elements
  • Contains iron, iodine and magnesium, among others
  • Increased bioavailability thanks to organic structure
  • Calcium for bones, teeth, electrolyte balance, digestive enzymes
  • Calcium for energy metabolism, reduction of tiredness and fatigue, blood clotting, nervous system
  • Sustainably mined in the Atlantic Ocean, extremely low in heavy metals
  • Vegan, GMO-free, tested for harmful substances


Customize Natural Calcium <br/> <span class="protect-case">400mg</span> High-Dose <br/> Capsules
2 x Natural Calcium 400mg High-Dose Capsules   + €0.00

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€18.80 €19.80

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€57.32 / 1kg

Premium Bioactive Ingredients

  • 400mg plant-based calcium per capsule
  • 100% plant-based calcium carbonate (32% calcium) from calcified Atlantic lithothamnion red algae
  • High bioavailability due to its organic structure
  • Calcium content guaranteed by the producer
  • Synergetic complex of 63+ minerals and trace elements (antimony, barium, boron, calcium, cerium, caesium, carbon, chloride, chromium, cobalt, copper, dysprosium, erbium, europium, fluoride, gadolinium, gallium, germanium, gold, hafnium, holmium, indium, iodine, iron, lanthanum, lithium, lutetium, magnesium, manganese, molybdenum, neodymium, nickel, niobium, osmium, phosphorus, platinum, potassium, praseodymium, rhenium, rhodium, rubidium, ruthenium, samarium, scandium, sulphur, selenium, silicon, silver, sodium, strontium, tantalum, tellurium, terbium, tin, titanium, thallium, thorium, thulium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium)
  • Vegan, non-GMO, laboratory tested for toxins

How are we different?

Our calcium comes from sustainable degradation of calcified Old Atlantic Lithothamnium red algae. Due to the organic structure of this, our phytocalcium is particularly bioavailable.

The Lithothamnium red algae from the Atlantic (Calcified Atlantic Seaweed®) has a particularly high concentration of naturally bound calcium (32%). The calcium is present in the form of calcium carbonate and is embedded in a multi-mineral complex of 63+ minerals and trace elements, including magnesium, iron and iodine. In the course of its growth, the alga absorbs these from the seawater and forms its cell structures from them. After death, the algal body calcifies into a finely porous, skeleton-like structure and sediments separately from the younger algae on the seafloor of the Atlantic Ocean. At various locations, these sediments can eventually be harvested sustainably.

Calcified Atlantic Seaweed® is made from 100% wild-collected Atlantic Lithothamnium red seaweed that is harvested, cleaned and milled according to HACCP and ISO 22000:2018 standards, with processing that ensures the lowest possible heavy metal and microbiological levels, resulting in a red seaweed powder of maximum purity and compatibility. As a result, the heavy metal values of Calcified Atlantic Seaweed® are well below the European limits, despite originating from the seabed:
- Lead: 0.54mg / kg max 3mg / kg
- Cadmium: <0.5mg / kg max 1mg / kg
- Arsenic (anorg.): 0.1mg / kg max 1mg / kg
- Mercury:<0.1mg / kg max 0.1mg / kg

For the capsule shells we use custom-made HPMC capsules that, unlike most other HPMC and pullulan capsules on the market, are 100% free from controversial additives such as carrageenans and PEG. We then package this product in environmentally friendly amber glass jars.


  • Premium active ingredients in their purest form
  • Sourced directly from the world’s best producers
  • Our select raw materials are the basis of all our formulations
  • Complete avoidance of all unnecessary additives and adjuvants
  • Exclusive use of valuable natural ingredients for additives
  • We voluntarily declare all ingredients
  • All extractions performed without the use of chemical solvents
  • Custom production when necessary, in order to achieve the highest possible level of purity
  • Independent laboratory testing available on product pages
  • Raw materials sourced only from premium suppliers who are committed to fair working conditions
  • Amber glass and compostable pouches used for packaging
  • Vegan capsule shells, free from PEG and carrageenans
  • Packaged in the EU according to HACCP, GMP and ISO 22000:2018 standards
  • Stored in non-toxic containers
  • Shipped in mineral oil-free boxes
  • All products guaranteed 100% free from magnesium stearate, silicon dioxide, nanoparticles (no legal opportunism), genetic engineering, artificial colours and flavours, titanium dioxide and added sugar & sweeteners



Calcium exists in greater quantities than any other mineral in the human body. 99% of bodily calcium is located in the bones and teeth, where it provides structural stability and strength. Additionally, calcium plays a role in various cellular processes, including energy production, blood clotting, signal transmission between nerve cells, and excitation of muscles and nerves.

Plant-Based Calcium Carbonate with High Bioavailability

The calcium carbonate found in calcified lithothamnium red algae has an organic structure that is fundamentally different from inorganic calcium carbonate sources such as limestone. In contrast to limestone, algal calcium is finely porous, which increases its surface area and the solubility and bioavailability of the calcium carbonate. It has been shown that algal calcium can therefore be better absorbed by the body, at rates of up to 200% of those of inorganic calcium.

Mineral Complex with 63+ Minerals and Trace Elements

In addition to highly bioavailable calcium, lithothamnium red algae also contains a range of mineral and trace elements absorbed from sea water. Magnesium, iodine, and iron are among the minerals naturally occurring in the largest quantities, and are necessary for numerous enzymatic functions. As a result, Calcified Atlantic Seaweed® is a multimineral complex with benefits that exceed those of isolated calcium supplements such as calcium citrate.

Health Benefits of Calcium According to the European Food Safety Authority (EFSA)


  • Contributes to normal blood clotting
  • Contributes to normal energy metabolism
  • Contributes to normal muscle function
  • Contributes to normal neurotransmission
  • Contributes to normal function of digestive enzymes
  • Plays a role in cell division and specialisation
  • Is needed for the maintenance of bones
  • Is needed for the maintenance of teeth
  • Helps reduce the risk of bone mineral density decline in postmenopausal women (low bone mineral density is a risk factor for osteoporotic fractures)
  • Is needed for normal growth and bone development in children


Recommended Dosage

Take 1–2 capsules (400mg calcium per capsule) with 200ml water daily.

Food Supplement

Do not exceed the recommended dose. Food supplements cannot replace a balanced and varied diet. Keep out of reach of children.


Store in a cool, dry place away from direct sunlight and heat.


Ingredients: Calcified Atlantic Seaweed (32% Calcium).
Capsule shells: Hydroxypropyl Methylcellulose.

Ingredients per Daily Dose (2 Capsules) % NRV*
CAS (Calcified Atlantic Seaweed) 2,500mg -
   of which elemental calcium 800mg 100%
   of which elemental magnesium 55mg 14.7
   of which elemental iron 2.5mg 17.9%
   of which elemental iodine 37.5µg 25%

* % Nutrient Reference Value

Per capsule: 400mg calcium
In total:  48,000mg calcium / jar

Product Details

German Pharmaceutical Number (PZN) 14384731
Origin The Atlantic Ocean
Production In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP/ISO 22000:2018 standards
Finished products packaged in amber glass jars and stored in non-toxic containers
Shipping in mineral oil-free boxes
Capsules Plant-based cellulose (HPMC). Vegan
Premium HPMC quality: Free from controversial additives such as carrageenans and PEG
Packaging Amber glass jar to protect against light and oxidation (free from plasticisers and BPA)
To Reuse Remove product label by soaking the jar in warm water for 5 minutes. Glue residue can be removed with dish soap

Laboratory Tests

The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.

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Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

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