Aquamin™ Marine Calcium: Benefits for Bone Health & Dose

[ 01 ] Key Facts

Dose in element³	RISE (AM Formula): 200mg
Form	Aquamin™ — marine-sourced calcium from red algae (Lithothamnion); naturally contains 74 trace minerals including magnesium, strontium, and boron
Signs you may need more	Bone density concerns, muscle cramps, brittle nails, dental problems, tingling in extremities
Safe range	1,000mg/day RDI for adult women (total calcium from all sources). Upper intake level 2,500mg/day. Aquamin™ is well-tolerated with fewer GI side effects than calcium carbonate.

Food sources

Dairy products
Fortified plant milks
Sardines (with bones)
Kale

[ 02 ] Rationale

Why this ingredient is in element³

Calcium is the most abundant mineral in the human body, with approximately 99% stored in bones and teeth. The remaining 1% circulates in blood and tissues where it is essential for muscle contraction, nerve signalling, blood clotting, and enzymatic reactions. When dietary calcium is insufficient, the body withdraws it from bones to maintain these critical functions — gradually compromising skeletal integrity. This is why calcium intake is not optional; it is a daily requirement.

Aquamin™ is not ordinary calcium. Harvested from the skeletal remains of red algae (Lithothamnion species), it contains calcium in a highly porous, honeycomb-like mineral matrix that the body absorbs more readily than the dense crystalline structure of calcium carbonate. But what truly distinguishes Aquamin™ is the 74 additional trace minerals it naturally contains — including magnesium, strontium, boron, zinc, and selenium — in the ratios and forms that occur in the marine environment. These trace minerals contribute to bone metabolism and may enhance calcium’s bioavailability and retention.

In RISE (AM Formula) — 200mg

In RISE, Aquamin™ at 200mg serves as the primary calcium foundation for bone health and cellular mineral support. This dose contributes 20% of the RDI as part of a comprehensive approach that relies on dietary calcium for the remainder. Aquamin™ works synergistically with Vitamin D3 (which enhances calcium absorption) and Vitamin K2 MK-7 (which directs calcium to bones rather than arteries) to form a complete bone health system. The trace minerals naturally present in Aquamin™ — particularly magnesium, strontium, and boron — further support the bone mineralisation process that these vitamins facilitate.

[ 03 ] At 35+

Relevant at 35+

Bone density begins to decline from the mid-30s, and the rate of loss accelerates dramatically during perimenopause and into menopause. Oestrogen directly stimulates osteoblast activity (bone formation), and as oestrogen levels fluctuate and eventually decline, the balance shifts toward net bone loss. Women can lose up to 20% of their bone density in the five to seven years following menopause. Ensuring adequate calcium intake during the years leading up to this window directly supports skeletal integrity during the period of accelerated loss.

The hormonal shifts of perimenopause also affect calcium absorption efficiency. Declining oestrogen reduces intestinal calcium absorption, meaning more calcium passes through the gut unused. This is why the D3/K2 pairing in RISE is essential: D3 counteracts the absorption decline, and K2 ensures what’s absorbed reaches the bones. Aquamin™’s superior bioavailability compared to calcium carbonate provides an additional absorption advantage during a period when every milligram matters.

Beyond bone health, calcium’s role in nerve and muscle function becomes more relevant as cortisol dysregulation from HPA axis stress contributes to muscle tension, cramps, and sleep disruption. The dual-context inclusion of Aquamin™ in RISE (bone health) and RESET (electrolyte balance) reflects the reality that calcium serves the body in multiple ways throughout the day.

[ 04 ] Your Questions

Your Questions

What is Aquamin™ calcium?

Aquamin™ is a marine-derived calcium complex harvested from red algae (Lithothamnion) off the coast of Iceland. Unlike calcium carbonate, it contains 74 naturally occurring trace minerals and has a porous structure that enhances bioavailability and digestive tolerance.

What form of calcium is in the element³ blend?

element³ RISE uses Aquamin™ — a marine-derived calcium from calcified red algae, rather than the calcium carbonate (ground limestone) or calcium citrate found in most supplements. This choice reflects both bioavailability and tolerability advantages: Aquamin™’s porous structure has a larger surface area than calcium carbonate, supporting better dissolution and absorption. It also brings 74 co-occurring trace minerals including magnesium, strontium, and boron that support bone health beyond calcium alone — mimicking more closely the multi-mineral matrix of bone tissue itself.

What are the benefits of taking Aquamin™ calcium?

Aquamin™ supports bone mineralisation through its calcium content alongside the 74 co-occurring trace minerals — particularly magnesium and strontium — that support bone matrix integrity beyond calcium alone. Research has demonstrated superior effects on bone cell activity and collagen production compared to calcium carbonate, likely due to its multi-mineral composition. It also supports muscle function (calcium is required for muscle contraction and relaxation), nerve signal transmission, and cardiovascular health

How much calcium do women over 35 need?

The RDI for adult women is 1,000mg/day (increasing to 1,300mg after 50). element³ provides approximately 228mg of Aquamin™ calcium across RISE and RESET, designed to complement the 700–800mg most women obtain from a balanced diet.

What are the benefits of Aquamin™ in the element³ protocol?

In element³ RISE, Aquamin™ at 200mg works within the bone health trio alongside Vitamin D3 (which enhances calcium absorption) and Vitamin K2 MK-7 (which directs absorbed calcium into bones rather than soft tissue). This coordinated approach to bone mineralisation addresses the full process: absorption, transport, and deposition.

What other Aquamin™ benefits have been found in clinical research?

Clinical research on Aquamin™ has demonstrated superior effects on osteoblast (bone-building cell) activity and collagen synthesis compared to calcium carbonate in cell and animal studies. Human research has shown improvements in bone flexibility and resistance to fracture with Aquamin™ supplementation. Separate research has documented Aquamin™’s benefits for joint health, with studies showing reductions in joint pain and improvements in mobility in arthritis patients. Its digestive tolerability is also well-documented — the porous algae structure dissolves more readily than calcium carbonate, producing fewer gastrointestinal side effects.

What is the recommended daily intake of calcium?

The recommended dietary intake for calcium is 1,000mg per day for adult women aged 19–50, rising to 1,300mg per day for women over 50. element³ RISE provides 200mg as Aquamin™ per serve — 20% of the adult RDI — designed as a supplementary contribution alongside dietary calcium rather than a standalone replacement. element³ RESET provides an additional 28mg in the electrolyte context. The upper intake level for calcium is 2,500mg per day; excessive supplemental calcium (particularly from calcium carbonate) without adequate K2 and D3 has been associated with cardiovascular calcification risk, which is why RISE delivers calcium alongside K2 and D3.

What food provides calcium?

Calcium is most abundant in dairy products (milk, yoghurt, hard cheeses), canned fish with bones (sardines, salmon), tofu set with calcium, almonds, tahini, kale, and broccoli. Fortified plant milks provide calcium but often as calcium carbonate, which is less bioavailable than the calcium in dairy. Calcium absorption from food is significantly influenced by vitamin D status — another reason why pairing calcium (Aquamin™), D3, and K2 together in RISE addresses the full absorption and utilisation chain rather than relying on calcium supplementation alone.

Are there any Aquamin™ calcium side effects?

Aquamin™ is well-tolerated in clinical research with a notably better gastrointestinal profile than calcium carbonate, which commonly causes constipation and bloating. At the 200mg dose in element³ RISE and 28mg in RESET, side effects are not expected. The porous structure of Aquamin™ dissolves more readily in the stomach, reducing the GI discomfort associated with dense calcium carbonate tablets. Total daily calcium intake from all sources (diet plus supplementation) should stay within the 2,500mg upper limit; those with a history of kidney stones or hypercalcaemia should consult a healthcare practitioner.

What are calcium deficiency symptoms?

Calcium deficiency (hypocalcaemia) symptoms include muscle cramps and spasms (particularly in the legs and feet), tingling or numbness in the fingers and around the mouth, brittle nails, dental problems, and in significant deficiency, muscle tremors and irregular heartbeat. Long-term inadequate calcium intake without symptoms leads to progressive bone density loss (osteopenia and eventually osteoporosis) that is often silent until a fracture occurs. Women are at significantly higher risk of osteoporosis than men, with bone density loss accelerating substantially at menopause due to declining oestrogen.

Aquamin™ vs calcium carbonate — which is better?

Research indicates Aquamin™ has better bioavailability compared to calcium carbonate, with its porous mineral matrix and 74 trace minerals supporting more efficient absorption and bone mineralisation. It is also better tolerated digestively, causing fewer issues with bloating and constipation.

[ 05 ] The Research

2 studies

The Research

Study	Key finding	Why it's here	Read
A natural mineral supplement provides relief from knee osteoarthritis symptoms: a randomized controlled pilot trialFrestedt, J. L., Walsh, M., Kuskowski, M. A., & Zenk, J. L. (2008). A natural mineral supplement provides relief from knee osteoarthritis symptoms: A randomized controlled pilot trial. Nutrition Journal, 7, 9. https://doi.org/10.1186/1475-2891-7-9	Aquamin® supplementation reduced WOMAC pain and stiffness scores in adults with osteoarthritis vs placebo over 12 weeks.	Supports bone strength, muscle relaxation and joint comfort.	Read →
Calcium carbonate and the premenstrual syndrome: Effects on premenstrual and menstrual symptomsThys-Jacobs, S., Starkey, P., Bernstein, D., & Tian, J. (1998). Calcium carbonate and the premenstrual syndrome: Effects on premenstrual and menstrual symptoms. American Journal of Obstetrics and Gynecology, 179(2), 444–452. https://doi.org/10.1016/S0002-9378(98)70377-1	Daily calcium supplementation significantly reduced overall PMS symptom scores compared with placebo in a large RCT.	Supports bone health and balanced cycle symptoms.	Read →

[ 06 ] In the Protocol

Where Calcium (as Aquamin™ Calcium, Marine Algae Lithothamnion sp.) sits in the element³ Protocol

Aquamin™ Calcium serves two distinct roles in the element³ protocol. In RISE (AM Formula) at 200mg, it provides marine-sourced calcium for bone health alongside Vitamin D3 (enhanced absorption) and Vitamin K2 MK-7 (bone deposition), with 74 trace minerals supporting the broader mineralisation process — in a marine-sourced form that is gentler and better absorbed than standard calcium supplements.

You can learn more about the full element³ ingredient philosophy at element3.co.nz.

Calcium (as Aquamin^™ Calcium, Marine Algae Lithothamnion sp.)