Why take magnesium and calcium together?

Magnesium and calcium are the two minerals most commonly taken as supplements, and for good reason. They are involved in a large number of processes in the body, from muscle function and bone maintenance to energy metabolism and the nervous system. But they do not operate independently of each other. Magnesium and calcium influence one another: magnesium plays a role in the absorption and utilisation of calcium by the body, among other things. Anyone looking to supplement calcium would be wise to include magnesium as well, and vice versa.

At Kala Health, this product was developed by founder Paul Klein Breteler based on precisely that insight. Not combining two separate minerals in synthetic form, but building a formula in which magnesium and calcium are present in a natural, balanced ratio. Supplemented with the full spectrum of 70+ minerals and trace elements naturally found in marine sources.

Why minerals are so important as a supplement

The reason we at Kala Health recommend mineral supplementation first has to do with a trend that has been ongoing for decades. Research shows that the mineral content in our food has been steadily declining since the 1940s. The causes are well known: intensive agriculture, depleted soils, faster cultivation cycles and increased food processing. What once provided sufficient minerals through a varied diet increasingly falls short today.

Source: Paul Bergner, The Healing Power of Minerals (1997). The mineral content in vegetables and fruit has been declining for decades due to intensive agriculture and soil depletion. Magnesium and calcium are among the minerals that have decreased the most.

The nutrition scientist Paul Bergner documented this decline in his work The Healing Power of Minerals. His analysis showed that the levels of calcium, magnesium, iron and other minerals in vegetables and fruit had decreased by as much as tens of percent over a period of 60 years. This means that even people who consciously eat healthily do not always obtain the minerals their body needs through food alone.

Minerals work as a system, not as individuals

A common mistake in supplementation is taking one or two isolated minerals in high doses. Magnesium and calcium do not stand alone: they function within a network of dozens of other minerals and trace elements that influence each other’s absorption, transport and utilisation in the body.

Minerals function as an interconnected network.

The diagram above illustrates this interplay. Magnesium influences the absorption of calcium, but also of potassium, sodium and zinc. Calcium in turn is connected to phosphorus, iron and manganese. A deficiency of one mineral can disrupt the absorption of another. An excess can have the same effect. This is precisely why Kala Health does not choose isolated minerals, but sources that naturally carry the full spectrum, in the ratios as they occur in nature.

Two marine sources, one complete formula

What makes this formula unique is the combination of two different marine raw materials, each bringing their own strength:

Together, these two raw materials form a complete mineral complex: magnesium and calcium in a balanced ratio, supported by more than 70 other minerals and trace elements. All of marine origin, in ionic form, and therefore easily absorbed through the intestinal wall.

Why do we formulate differently from other brands?

Most magnesium-calcium supplements on the market combine two synthetic ingredients in high doses. Magnesium citrate plus calcium carbonate, for example. On paper, that delivers impressive numbers on the packaging, but it lacks something essential: the broad spectrum of trace minerals that naturally works together with magnesium and calcium.

At Kala Health, we have been thinking differently about product formulation since 1997. Our founder Paul Klein Breteler personally formulates every product, based on the principle that minerals never occur in isolation in nature. They function as a system, in mutual ratios that have evolved over millions of years. Our formula respects that principle by exclusively using marine raw materials that naturally carry the full mineral spectrum.

The result is a supplement that fundamentally differs from a synthetic magnesium-calcium combination. Not dosed higher than necessary, not isolated, but complete and in balance.

Proven better absorption of marine minerals

A study published in the journal Nutrients (Demehin et al., 2026) showed that magnesium from seawater concentrate (Aquamin Mg) has a significantly better bioavailability than common magnesium forms such as magnesium bisglycinate when digested together with food. The researchers attribute this to two factors: the trace minerals in the concentrate protect the magnesium from binding by phytate and oxalate from food, and the amorphous structure of the seawater concentrate allows for faster dissolution. A detailed description of this study can be found on the page of our Magnesium Complex Powder.

Health benefits of magnesium and calcium

Magnesium and calcium are together involved in a large number of processes in the body. The following health claims are officially authorised:

Who is Magnesium & Calcium suitable for?

Magnesium & Calcium has been developed for adults and children who want to supplement their daily diet with a balanced combination of magnesium and calcium from natural, marine sources. The product is particularly suitable for those who:

Want to supplement both magnesium and calcium — instead of taking two separate supplements, this formula provides both minerals in one capsule, in the correct ratio to each other.

Pay extra attention to bones and teeth — both magnesium and calcium contribute to the maintenance of normal bones and the maintenance of normal teeth.

Prefer a milder magnesium dose — at 113 mg magnesium per capsule, the dose is lower than the Magnesium Complex (211 mg). For those seeking a broad mineral spectrum without a high magnesium dose, this is the right choice.

The product is 100% vegan (plant-based HPMC capsule), free from yeast, lactose and gluten. For children, the dosage can be adjusted according to body weight.

The complete Magnesium range from Kala Health

In addition to Magnesium & Calcium, we also offer the Magnesium Complex Powder, with 350 mg elemental magnesium per scoop for those who want the highest dose. The Magnesium Complex Capsules contain 211 mg elemental magnesium per capsule from 100% seawater concentrate. All products contain the full spectrum of 70+ minerals and trace elements.

Kala Health: product developer, manufacturer and your therapeutic adviser since 1997

Kala Health was founded in 1997 by Paul Klein Breteler, and we are a product developer and manufacturer. The Magnesium & Calcium formula was personally developed by Paul, based on the conviction that a good mineral supplement must be more than two isolated substances combined. The choice for two marine raw materials that naturally carry the full mineral spectrum reflects that philosophy.

Every package of Magnesium & Calcium is produced in our own FSSC 22000 certified facility in the Netherlands. From raw material analysis to filling and packaging: everything takes place in-house, under direct supervision of our quality team. The raw materials are tested before they enter our factory and the finished product is inspected again after production.

What sets us apart is the combination of production and advice. We now work with a team of nutrition specialists, our own therapist and a pharmacist. When you call or email with a question about this product, you speak with professionals who know the subject matter in detail. That personal advice is always free of charge and without obligation.

Product features

• 113 mg magnesium and 94 mg calcium per capsule in a balanced ratio
• Two marine raw materials: Aquamin® Mg TG (seawater concentrate) and Aquamin® TG (red algae Lithothamnion)
• Contains 70+ minerals and trace elements naturally found in marine sources
• Minerals in ionic form: easily absorbed through the intestinal wall
• Plant-based capsule (HPMC), 100% vegan
• Free from yeast, lactose and gluten
• Free from preservatives, synthetic fragrances, colours and flavours
• Suitable for adults and children
• Produced in the Netherlands in our own FSSC 22000 certified facility

References

1. Bergner, P. (1997). The Healing Power of Minerals, Special Nutrients, and Trace Elements. Prima Publishing.
2. Demehin, O. A., Ryan, M., Higgins, T., Moura Motta, B., Jähnichen, T., & O’Connell, S. (2026). A comparison of marine and non-marine magnesium sources for bioavailability and modulation of TRPM6/TRPM7 gene expression in a Caco-2 epithelial cell model. Nutrients, 18(2), 324. https://doi.org/10.3390/nu18020324

Expressly stated

A food supplement is not a substitute for a varied diet. A varied, balanced diet and a healthy lifestyle are important. This product is a food supplement (contains magnesium and calcium).

Consult a healthcare professional before using supplements in case of pregnancy, breastfeeding (lactation), medication use and illness.

Due to legal restrictions, we are unable to disclose all details regarding the potential effects of this food supplement. For questions or personal advice, please contact us by phone: (+31) 070 345 0290. Or by email: info@kalahealth.eu.