Name: O2B Calci-Mag
Brand: O2B Healthy
SKU: O2B267P
Price: 59.95 NZD
Availability: InStock

Calcium, magnesium, zinc and vitamin D for strong bones, relaxed muscles and healthy ageing.

Provides calcium for healthy bones and teeth

Provides magnesium for normal muscle relaxation and function

Supports normal energy metabolism

$59.95

Tax included. Shipping calculated at checkout.

250 Capsules

Quantity

O2B Calci-Mag combines calcium, magnesium, zinc and vitamin D3 to support strong bones, normal muscle contraction and relaxation, healthy nerve function and everyday mobility.

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Details +

Four essential nutrients for bones, muscles and nerves

O2B Calci-Mag is one of our original formulations, developed with an understanding that healthy movement depends on more than strong bones alone.

Combining calcium, magnesium, zinc and vitamin D3, this carefully balanced formula supports the interconnected functions of bones, muscles and nerves.

Featuring two forms each of calcium, magnesium and zinc, O2B Calci-Mag provides everyday nutritional support for bone strength, normal muscle function, healthy nerve signalling and comfortable movement.

Calcium: more than just strong bones

Calcium is best known for its essential role in maintaining strong bones and teeth, where approximately 99% of the body's calcium is stored.

However, calcium also plays a critical role in muscle contraction, nerve signalling and numerous cellular processes.

When a muscle receives a signal to contract, calcium is released within muscle cells, helping activate the proteins responsible for generating movement.

O2B Calci-Mag provides 200 mg of elemental calcium from calcium carbonate and calcium citrate, two complementary forms that contribute to daily calcium intake.

Magnesium: essential for muscle relaxation

Magnesium works closely with calcium to support normal muscle and nerve function.

While calcium helps initiate muscle contraction, magnesium contributes to the processes that allow muscles to relax and return to their resting state.

Magnesium is also required for hundreds of enzyme reactions, including those involved in energy production, protein synthesis and normal nervous-system function.

Inadequate magnesium status can contribute to muscle weakness and cramping, making adequate intake particularly important for maintaining healthy muscle function.

O2B Calci-Mag provides 75 mg of elemental magnesium from magnesium citrate and magnesium bisglycinate, forms selected to provide well-absorbed, generally well-tolerated magnesium.

The calcium–magnesium relationship:

Calcium and magnesium perform complementary roles throughout the body, particularly in muscles, nerves and bone tissue.

Normal muscle movement depends on carefully regulated calcium signalling, while magnesium helps maintain the balance of these processes and supports normal cellular energy metabolism.

Both minerals are also important components of healthy bone metabolism.

By providing calcium and magnesium together, O2B Calci-Mag supports the nutritional foundations of muscle coordination, normal nerve function and skeletal health.

Vitamin D3: helping the body utilise calcium

Vitamin D3 is essential for the normal absorption and utilisation of calcium and phosphorus.

Without adequate vitamin D, the body cannot efficiently absorb dietary calcium, regardless of how much calcium is consumed.

Vitamin D also contributes to normal muscle function and immune-system health.

Each stated serving of O2B Calci-Mag provides 250 IU (6.25 mcg) of vitamin D3, complementing the calcium and magnesium in the formula.

Zinc: supporting bone maintenance and tissue repair

Zinc is an essential trace mineral involved in hundreds of enzymatic processes throughout the body.

It contributes to normal protein synthesis, cell division, immune function and tissue repair, all of which are important for maintaining healthy connective tissues and skeletal structures.

Zinc also plays a role in normal bone metabolism and the activity of cells involved in maintaining bone tissue.

O2B Calci-Mag provides 5 mg of elemental zinc from zinc gluconate and zinc citrate.

Supporting healthy movement as we age

Healthy movement depends on the coordinated function of bones, muscles, nerves and connective tissues.

As we age, changes in muscle mass, physical activity, dietary intake and nutrient absorption can make maintaining adequate mineral status increasingly important.

Calcium, magnesium, zinc and vitamin D each contribute to different aspects of this system, from skeletal strength and muscle contraction to nerve signalling and tissue maintenance.

O2B Calci-Mag brings these four nutrients together in a longstanding O2B formulation designed to support everyday mobility, muscle function and healthy ageing.

FAQs +

What is O2B Calci-Mag?

O2B Calci-Mag is a combined calcium, magnesium, zinc and vitamin D3 supplement.

It is formulated to support healthy bones, teeth, muscles, nerves and normal mineral metabolism.

How many capsules should I take?

Adults take two to three capsules daily.

Women during menopause may take three to four capsules daily, or follow the advice of their healthcare professional.

Should I take Calci-Mag with food?

Yes. Taking the capsules with a meal may improve digestive comfort and helps make the routine easier to maintain.

Can I divide the serving?

Yes.

For example, a three-capsule serving could be divided between breakfast and dinner.

Can I take it before bed?

It may be taken in the evening, and magnesium supports normal muscle relaxation.

However, it is not a sleeping medicine and should not be guaranteed to resolve insomnia. Keep it separated from interacting medication according to professional advice.

How much calcium is in each capsule?

Each capsule provides 200mg of elemental calcium.

How much magnesium is in each capsule?

Each capsule provides 75mg of elemental magnesium.

How much zinc is in each capsule?

Each capsule provides 5mg of elemental zinc.

How much vitamin D is in each capsule?

Each capsule provides 250IU of vitamin D3.

Why are two forms of calcium used?

The formula combines calcium carbonate and calcium citrate.

Calcium carbonate provides a concentrated amount of calcium, while calcium citrate offers calcium in an alternative form within the same formula.

Why are two forms of magnesium used?

Magnesium citrate and magnesium bisglycinate provide the total 75mg of elemental magnesium.

Using two forms gives the formula a broader mineral profile than relying on one source alone.

Why are calcium and magnesium combined?

Calcium and magnesium have complementary roles in bones, muscles and nerves.

Calcium contributes to muscle contraction, while magnesium supports normal relaxation and helps regulate many processes involved in mineral use.

Does Calci-Mag support bone health?

Yes.

Calcium, magnesium, zinc and vitamin D all contribute to normal bone maintenance.

The product should be used alongside adequate protein, appropriate physical activity and a varied diet.

Can it prevent osteoporosis?

No supplement can guarantee the prevention of osteoporosis.

Calci-Mag provides nutrients involved in bone maintenance, but osteoporosis risk is also influenced by age, hormones, genetics, exercise, smoking, alcohol use, medication and overall nutrition.

Why is Calci-Mag relevant during menopause?

Falling oestrogen levels during and after menopause can accelerate bone loss.

Calci-Mag provides nutrients involved in bone maintenance, but it should complement rather than replace clinical assessment, resistance exercise and prescribed treatment when required.

Can I take it with O2B Multi Mineral?

The formulas overlap substantially.

Both provide calcium, magnesium, zinc and vitamin D, so they should not automatically be combined without reviewing the complete daily intake.

Can I take it with a separate magnesium supplement?

Possibly, depending on your needs and the amount supplied by the other product.

Calculate the total supplemental magnesium and seek professional guidance when using it for a specific concern.

Can I take it with a separate vitamin D supplement?

Check your total daily vitamin D intake.

Calci-Mag provides between 500IU and 1,000IU at the directed adult serving range.

Can I take it with calcium-rich foods?

Yes.

Dietary sources remain important and may include dairy products, fortified plant milks, canned fish with bones, tofu set with calcium and selected leafy vegetables.

Can I take it with thyroid medication?

Calcium and magnesium may reduce the absorption of thyroid hormone.

Separate the doses by at least two hours, although some thyroid medicines may require a longer interval. Follow the specific advice of your pharmacist or prescriber.

Can I take it with antibiotics?

Calcium, magnesium and zinc may bind to tetracycline and quinolone antibiotics and reduce their absorption.

Separate the doses by at least two hours or use the interval specified by your pharmacist.

Can I take it with osteoporosis medication?

Calcium and magnesium may interfere with the absorption of bisphosphonate medicines.

Follow the precise timing instructions supplied with the medicine and ask your pharmacist where Calci-Mag fits into the schedule.

Can I take it if I have kidney disease?

Only after speaking with your healthcare professional.

The kidneys regulate mineral balance, and supplementation may not be appropriate when kidney function is reduced.

Can Calci-Mag cause digestive side effects?

Some people may experience:

Constipation
Nausea
Abdominal discomfort
Loose bowel movements

Calcium is more commonly associated with constipation, while magnesium may loosen stools. Taking the capsules with food may improve tolerance.

Can I take all four capsules at once?

The serving can be divided between meals, which may improve tolerance and reduce the amount of minerals taken at one time.

How should I store it?

Keep the pack tightly closed in a cool, dry place away from heat, moisture and direct sunlight.

Keep out of reach of children and follow any additional storage directions on the current packaging.

Directions & Precautions +

Suggested Dose:

Adults: Take 2-3 capsules daily

Women: Take 3-4 capsules daily during menopause or as directed by your health care professional.

Cautions and Warnings:

If taking prescription medication, pregnant, nursing or have known sensitivities please consult your health care professional before taking this product.
If taking Tetracycline or Quinolene antibiotics, Bisphosphonates (osteoporosis drugs) or thyroid hormone, separate the doses by at least 2 hours as Calcium ,Magnesium and Zinc may reduce the absorption and efficiency of these medications.

Ingredients +

Each capsule contains:

Ingredient	Amount	Role in Bone, Muscle & Mineral Support
Calcium Carbonate (equiv. elemental calcium 150 mg)	375 mg	Provides calcium to support bone and tooth strength, normal muscle contraction and healthy nerve function
Calcium Citrate (equiv. elemental calcium 50 mg)	220 mg	Provides a readily absorbed form of calcium to support bone density, muscle function and everyday mineral intake
Total Elemental Calcium	200 mg	Supports the maintenance of strong bones and teeth and normal muscular and nervous-system function
Magnesium Citrate (equiv. elemental magnesium 52.5 mg)	219 mg	Provides magnesium to support normal muscle relaxation, nerve function, energy production and bone health
Magnesium Bisglycinate (equiv. elemental magnesium 22.5 mg)	150 mg	Provides a well-tolerated form of magnesium to support muscle function, relaxation and nervous-system wellbeing
Total Elemental Magnesium	75 mg	Supports healthy muscles and nerves, normal energy metabolism and the maintenance of strong bones
Zinc Gluconate (equiv. elemental zinc 1.9 mg)	14.6 mg	Provides zinc to support immune function, tissue repair, antioxidant defences and healthy bones
Zinc Citrate (equiv. elemental zinc 3.1 mg)	10 mg	Provides an additional form of zinc to support immune health, skin integrity and normal cellular function
Total Elemental Zinc	5 mg	Supports healthy immune function, wound healing, antioxidant protection and normal growth and development
Vitamin D3 (Cholecalciferol)	250 IU (6.25 mcg)	Supports calcium absorption and utilisation, helping maintain strong bones, healthy muscles and normal immune function
Encapsulating Aids

Who is O2B Calci-Mag for?

You may notice that your muscles feel less settled after training, your diet no longer includes much dairy, or you have started thinking more seriously about maintaining strength and independence as you age. During and after menopause, changing hormone levels can also make bone health feel more urgent than it did earlier in life.

O2B Calci-Mag may suit:

Women giving greater attention to bone health during menopause
Older adults wanting to support long-term bone maintenance
People whose diets contain limited dairy or other calcium-rich foods
Active adults wanting support for normal muscle contraction and relaxation
People who experience occasional muscular tightness after physical activity

What You Can Count On

Made By Us

We have made human and pet supplements in our purpose-built factory in Nelson, New Zealand since 2003.

Quality Control

Trust is important to us. We operate under compliance procedures verified by MPI and we lab test every product we make.

Free Shipping in NZ

We offer a factory direct overnight courier service to our New Zealand customers for FREE. No minimum order.

Made in Nelson, New Zealand

We’ve been manufacturing natural health supplements for over 20+ years in our purpose built facility. We take a nutrition based approach to health and believe that what you put in, is what you get out. That’s why we use natural ingredients and science backed formulations to develop our products, ensuring you get the highest quality products made locally.