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  Calcium with Mag, Boron & D3, 300 mg, 100 Veg Caps
Calcium with Magnesium  and Boron (powder form)

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Calcium with Magnesium promotes healthy bones, cardiovascular health and much more!

Capsule Size: 6C
Retail $14.95
Our Price $6.97

Availability: Usually Ships in 1 to 2 Business Days

Description Supplement Facts


  • Supports healthy bone formation and strength.
  • Promotes vascular function.
  • Assists in nerve transmission, enzyme reactions, and hormone release and storage.
  • Magnesium provides cells with needed energy, helps synthesize nucleic acids and proteins, and increases bone density over time.
  • Vitamin D increases the blood's ability to absorb calcium.
  • Boron helps maintain a healthy metabolism and prevents urinary loss of calcium.

Product Information

We all know from grade school that calcium helps strengthen bones. The mantra was always to enjoy milk products—or collard greens, Chinese cabbage, mustard greens, broccoli, bok choy, tofu, sardines with bones, fortified orange juice, etc.—because they keep your bones strong! In fact, 99% of the body's calcium is found in bone and teeth.

Calcium is an essential mineral for nerve transmission, muscle contraction, vascular contraction, vasodilation, glandular secretion, cell membrane and capillary permeability, enzyme reactions, respiration, renal function, blood coagulation, hormone release and storage, the production of energy and the maintenance of immune functions.

A number of studies indicate that calcium supports colorectal health and healthy blood pressure levels. It is also effective in supporting a healthy premenstrual cycle.

Phew! That's one big job for a homely little mineral!

Members are always asking about the various types of calcium—carbonate, citrate, acetate, aspartate, chelate, chloride, malate, gluconate, lactate, phosphate, and so on! Coral calcium is the latest rage. Frankly, we're skeptical of the claims on fancy calcium forms. Why?

When taken with meals, calcium carbonate—yes, the far less flashy and far less expensive stuff—has been shown to be as or more absorbable (39%) as five other forms of calcium, including calcium acetate (32%), calcium lactate (32%), milk (31%), calcium citrate (30%), and calcium gluconate (27%).

These figures were taken from a study reported in the New England Journal of Medicine, Vol. 317, No. 9, August 27, 1987. Further studies have been done on the absorbability of different calcium forms and those references are listed below.

Calcium is a bulky mineral, so when faced with formulating the Liquid Calcium product, we had to think about the hassles of taking extra soft gels. Calcium carbonate provides the most compact offering as well. Take a look at the differences in elemental calcium derived from different forms:

  • Calcium carbonate and calcium phosphate—approximately 40%
  • Calcium citrate—approximately 21%
  • Calcium lactate—approximately 13%
  • Calcium gluconate—approximately 9%

So, that's why we use the calcium carbonate form—plenty of research that it is as available as other forms, especially when taken with meals; it's more compact (fewer pills); and we can offer it at a better price.

Calcium in vegetarian capsules offers a wonderful source of bio-available calcium and allows our members the ability to open the capsule and add it to a shake or other meal. Here calcium is bound to five different carriers of transport mechanism in an easy-to-swallow capsule.

Magnesium is important to normal bone structure and from 50% - 60% of the magnesium in the body is present in bones! Similar to calcium, magnesium is another hard-working and under-appreciated mineral!

Magnesium plays an essential role in over 300 fundamental cellular reactions! It is necessary for every major biological process, including cellular energy and the synthesis of nucleic acids and proteins. It is also important for the electrical stability of cells, the maintenance of membrane integrity, muscle contraction, nerve conduction, and the regulation of vascular tone, among other things.

Importantly, magnesium seems to significantly increase bone density after two years of supplementation. Sound a little like its homely mineral friend, calcium, written about above?!

Bone health is dependent on a host of vitamins and minerals including magnesium, potassium, vitamin D and boron. To help cover the basics, we've now added vitamin D3 and boron to our ever popular Liquid Calcium.

Vitamin D3 (cholecalciferol), the active form of vitamin D that we use, maintains blood levels of calcium by increasing the absorption of calcium from food or supplements.

While it is not essential that you take vitamin D together with calcium, it is essential that your body have enough vitamin D circulating in your system to support calcium absorption. Combining calcium and vitamin D has been a long-time member request, hence our new formulation with vitamin D.

As background, vitamin D—also known as the “sunlight vitamin”—is created when your skin is exposed to sunlight. However, with so many folks avoiding the sun and with aging, your body's manufacture of vitamin D can drop to unhealthy levels.

Interestingly, Canada recognizes the importance of vitamin D in the prevention of osteoporosis in its health claim for foods that contain calcium: "A healthy diet with adequate calcium and vitamin D, and regular physical activity, helps to achieve strong bones and may reduce the risk of osteoporosis." The US version of this osteoporosis health claim does not yet include vitamin D.

Boron is a trace nutrient important for a healthy metabolism, and plays an important role in cell membrane function as well. Specifically, boron helps in the metabolism of calcium, vitamin D, potassium, and magnesium. For calcium in particular, boron reduces urinary loss of calcium. Boron has also shown in preliminary studies to improve cognitive functions in older people.


  • Men with high dietary calcium intake may increase their risks of prostate cancer. Check with a health care practitioner to ensure appropriate levels are being met and not overdone.
  • Cigarette smoking decreases intestinal calcium absorption.
  • The elderly are at increased risk of hypomagnesemia. The elderly are more prone to decreased magnesium absorption and increased urinary loss and disease states associated with abnormal magnesium status.
  • Calcium is absorbed more efficiently in those of Asian and African descent than in Caucasians.
  • Dietary oxalate and phytate, which tend to be higher in vegetarian diets, reduce calcium bioavailability.
  • High dietary caffeine or sodium intake increases urinary calcium excretion.
  • Ingestion of food high in Vitamin D increases absorption of supplemental calcium.
  • And, calcium is an alkaline-earth metal with an atomic number of 20 and an atomic mass of 40.08 daltons. Whoo hoo! Juicy stuff, huh!
  • Magnesium is the second most plentiful cation in the intracellular fluid and the most plentiful cation in the body!
  • Magnesium blood levels may play a role in insulin resistance.
  • Magnesium is an alkaline earth metal with an atomic number of 12 and an atomic weight of 24.31 daltons.

Average Customer Review: 4.5 of 5 | Total Reviews: 12 Write a review.

  0 of 0 people found the following review helpful:
Calcium with Mag, Boron & D3, 300 mg, 100 Veg Caps October 16, 2015
Reviewer: Anonymous Person from Hilltop Lakes, TX United States  
I really like all those ingredients in the cal-mag product.

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  0 of 0 people found the following review helpful:
Gen Health February 25, 2014
Reviewer: Albert H E. from Overgaard, AZ United States  
Just started using but, should do good.

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  0 of 0 people found the following review helpful:
Don't know how to rate/review November 11, 2013
Reviewer: Anonymous Person from Urbandale, IA United States  
I have osteopenia heading toward osteoporosis, taking some supplemental calcium seems like a good idea. Some research recently suggests it may not help, though.

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  0 of 0 people found the following review helpful:
Good Producte July 11, 2013
Reviewer: Paul B. from Fern Creek, KY United States  
This is a good product, provides a source of Calcium, Mag and more.

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  0 of 0 people found the following review helpful:
Great product and price March 14, 2013
Reviewer: Barry from Schwenksville, PA United States  
Good ratio of calcium and mag.  added D3 is a nice bonus.

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