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Nutrition for Optimal Wellness

Calcium Magnesium Supplements

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Calcium and Magnesium

Ask people to name a dietary mineral and the two answers you’ll most likely receive are calcium and magnesium. While all dietary minerals (more appropriately referred to as mineral nutrients) are important for our health and well-being, these two stand far above the rest as far as popularity and daily use.


Probably the most well-known of all the mineral nutrients, calcium is the one found most abundantly in the human body. While many of us know calcium as the bone mineral we need to maintain healthy skeletal structure, this is just a tiny fraction of calcium’s beneficial properties.

Calcium is crucial for proper neuromuscular and vascular function. It helps to maintain healthy serum cholesterol levels already within the normal range, and is necessary for hormone secretion and intercellular signaling.*

Our bodies cannot produce calcium on its own, so we have to obtain it from our diet. In order to maintain the body’s tight control over serum calcium levels, bones are constantly being “remodeled.” Remodeling consists of calcium deposition and loss (resorption) from bone tissue. This process changes throughout the life cycle. During childhood and adolescence the deposition of calcium is greater than resorption due to rapid growth and development. During early and mid-adulthood they’re basically even. But later in life resorption begins to outpace deposition, leading to bone loss and the health concerns that accompany it. Optimum dietary intake of calcium is important to offset this imbalance as we head into our later years.


Like calcium, magnesium is abundant in the human body and is just as vital to our health and well-being. This important mineral nutrient is a cofactor in more than 3000 metabolic reactions. Our immune, cardiovascular and nervous systems all need magnesium to function normally, and it works with calcium to maintain skeletal health. It also helps regulate blood glucose and plays a key role in the processes used to produce energy.*

Ironically, although magnesium is found abundantly in our body with a healthy diet, recent research has shown that magnesium deficiency is becoming increasingly common, with one study showing that more than 50% of the U.S. population does not meet the U.S. recommended daily intake (RDI) for dietary intake of magnesium.

The NOW® Difference

We know you have a lot of brands to choose from when it comes to mineral supplements. At NOW we’ve been empowering people to lead healthier lives naturally for more than 45 years, and we’ve learned a thing or two about the quality of nutritional supplements. Our focus on product quality, purity and identity ensures you’ll always get a fresh, potent and effective product every time you choose NOW.

With more than 1400 products, including over 900 supplements, we offer more than any other natural products manufacturer. Our line of calcium and magnesium supplements is second to none. We offer a variety of forms and potencies for your convenience, as well as specialized formulations such as Coral Calcium, Bone Strength™, Kid Cal™, and more.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

Minerals (70)
Boron (2) Calcium/Magnesium (33) Calcium/Magnesium Pure Powders (8)
Colloidal Minerals (2) Full Spectrum Minerals (3) Iron (3)
Potassium (7) Selenium (4) Silica (2)
Trace Minerals (1) Zinc (6)