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Plant Based Calcium

Super Natural Calcium provides COMPLETELY natural calcium from a two plants. It is a vegan-approved alternative to synthetic forms of calcium ubiquitous in the dietary supplement industry today. .


The calcium in Super Natural Calcium is supplied by Hydrilla verticillata, a rooted, freshwater plant that contains 15% elemental calcium on a dry weight basis, and by calecareous algae from the ocean, Lithothamnium sp. Both ingredients provide calcium (Ca) as it is found in nature, bound to carbohydrates, proteins and polyphenols in natural molecular complexes. Calcium in this form is more compatible with human digestion and metabolism than mineral compounds synthesized in the laboratory, e.g. calcium carbonate, calcium citrate, calcium malate, calcium gluconate, etc. The body’s digestion and metabolism recognize calcium-containing molecular structures delivered by food as a result of adaptation to our food supply over millions of years.

Familiarity yields greater bioavailability. Although digestive and absorptive capabilities vary widely among individuals, especially in regard to calcium, plant based calcium can be expected, in general, to be approximately twice as bioavailable as commercial forms of calcium. Calcium carbonate, however, remains a special case. Calcium carbonate, whether synthesized (as in TUMS®) or from eggshell, coral, oyster shell or other source, is renowned for poor bioavailability in all but the youngest and most healthy members of the human population. By age 50, absorption of Ca from calcium carbonate shrinks to nil for most individuals.

Super Natural Calcium is available in both powder and tablet forms, Super Natural Calcium powder’s nutrient density and great Chai crème spice flavor make it a dietary supplement of value to everyone – especially vegans and other vegetarians. Try it in your smoothie or homemade vegetable juices as a way of naturally increasing dietary calcium.


Super Natural Calcium is available in both powder and tablet forms. There are 30 servings in one 129.14 gram jar of Super Natural Calcium powder. There are 240 tablets of Super Natural Calcium providing the same amount of calcium as the powder form.

As you can see from the supplement facts, Hydrilla verticillata endows Super Natural Calcium with more than just calcium. Vibrant Health’s supplies of Hydrilla come from Florida, where the limestone rock underlying the state’s thin sandy soil infuses the soil on the bottom of lakes with high levels of calcium. But a plant cannot live on calcium alone, and picks up and synthesizes other minerals and nutrients that enhance the overall nutritional value of Super Natural Calcium. 


Super Natural Calcium will influence thousands of biological reactions. The most basic role of calcium is to enable collagen synthesis, along with help from vitamin C and zinc. Collagen is the most abundant protein in the body, and serves to literally stick all cells together. It is the connective tissue that joins cells together to form bones, which are 35% collagen, and to form organs, muscles, skin and more.

Bone tissue is made up of both collagen and a large, complex mineral crystal called hydroxyapatite. Calcium itself is such an abundant component of hydroxyapatite that it ends up as a primary structural component of bone at 39.9% of its structural mass. This means that calcium is doubly important to skeletal health because it is required for the synthesis of collagen and to serve as a structural member of the hydroxyapatite crystal.

Without enough calcium, hydroxyapatite will not be formed in sufficient quantity to maintain healthy bone. And without enough calcium, inadequate collagen will be formed, weakening bone structure further. In all, calcium directly influences 75% of one’s bone structure.

Muscles cannot contract without calcium (just as they cannot relax without magnesium.) You cannot walk, run or pump blood to your brain without calcium. The many roles of calcium drive our daily dietary requirements to 1,000 mg and beyond.

The biologically active form of calcium is ionized calcium, that is, atomic calcium lacking two electrons. Ionized calcium (Ca2+) is the primary electrical signaling element in cells because of its ability to reversibly bind with proteins. As such, it is the most common chemical messenger within a cell. A lack of Ca2+ can disturb multiple cellular functions from energy production, to sugar metabolism, and responses to hormonal messengers.


Calcium compounds synthesized for commercial use such as calcium citrate, calcium citrate/malate, calcium aspartate, calcium orotate and other forms (apart from carbonate) found in supplements can be excellent sources of calcium. Indeed, some are, with absorption rates in the vicinity of 30%. At those levels, they favorably match milk and dairy products, which usually deliver around 32% of their calcium (The benefit of dairy foods is often lost, nevertheless. They bring with them an acidic metabolic load that can drain the body of calcium, reversing any benefit of calcium absorption from dairy foods.)

But those synthesized, tableted calcium supplements still do not match the best food sources. Broccoli, Bok Choy, and Kale, for example, have fractional calcium absorption of 51.3%, 52.7% and 58.8% respectively. We can expect similar bioavailability from the plant, Hydrilla verticillata, the material that is Super Natural Calcium.

Can one get too much?

Elevated blood calcium levels (hypercalcemia) through overconsumption of calcium (or rarely through chronically elevated urinary Ca excretion to the point of kidney calcification) manifests itself as constipation, lax muscle tone, copious urination, confusion, coma and ultimately, death. The condition has yet to develop through consumption of natural foods even in those populations whose indigenous diets daily deliver multiple grams of elemental calcium per day.

Hypercalcemia has been seen only in association with overuse of synthetic (NOT plant-based) calcium supplements. The potently alkalinizing effect from long term use of high doses of tableted supplements can raise the pH of the urine, setting the stage for calcium deposition in the kidneys. Resulting damage retards elimination of calcium through normal pathways, raising blood calcium levels.

Although hypercalcemia is rare, it does present an argument in favor of calcium supplementation through natural plant foods. Vibrant Health offers Super Natural Calcium as the best solution for a truly food form, plant based, and safe calcium supplement.


Super Natural Calcium can restore calcium nutrition in a form human biochemistry recognizes and utilizes. The mineral is needed by all humans, at all times, at all age levels. However, calcium supplementation becomes a focus for women after age 30 and for men after age 40, the demarcation points where population studies tell us we slip into negative calcium balance (i.e. the loss of more calcium through the urine than is absorbed by the GI tract.). We expect, therefore, that adults will be especially interested in Super Natural Calcium.


Rich source of highly bioavailable, natural, whole food, plant source calcium.

Other Minerals

Super Natural Selenium (60 capsules), $12.95

Super Natural Boron (3 mg., 60 vegicaps),$14.95

Super Natural Calcium Powder (200g), $39.95

Super Natural Calcium Tablets (240 tabs), $39.95

Super Natural Chromium (200mcg, 60 vegicaps), $15.95