Marine calcium originates from marine organisms or environments. Unlike calcium sourced from land-based minerals, it is naturally derived from the ocean’s biological resources. This form of calcium is often found within the structural components of various marine life.
Where Marine Calcium Comes From
Marine calcium is primarily sourced from marine organisms. Red algae, particularly species like Lithothamnion calcareum, are a significant source, providing calcium concentrations that can reach up to 31% by weight. These calcified remains are harvested to produce calcium-rich supplements.
Fossilized coral reefs also serve as a natural source of marine calcium, derived from coral exoskeletons. Oyster and other shellfish shells are abundant sources, with calcium carbonate content potentially reaching 95%. Processing these marine resources, such as crushing or vacuum heating, prepares them for use in supplements.
How Marine Calcium Differs
Marine calcium distinguishes itself from other calcium sources through its unique composition. It naturally contains trace minerals, including magnesium and strontium, characteristic of its oceanic origin. For instance, some marine-derived multi-mineral products contain over 72 different minerals.
The natural porous structure and complex mineral profile of marine sources may influence how the body absorbs calcium. Some natural sources like algae calcium and oyster shell calcium are recognized for their bioavailability, meaning the body can absorb and utilize them efficiently. This is attributed to their natural composition and structure, which the body may recognize more readily than some synthetic alternatives.
Supporting Your Health with Marine Calcium
Calcium plays an important role in numerous physiological processes. Approximately 99% of the body’s calcium is stored in bones and teeth, providing structural support and contributing to their density. Adequate calcium intake is important for bone development in younger individuals and for maintaining bone strength throughout adulthood.
Beyond bone health, calcium is involved in muscle function. It facilitates muscle contraction by triggering the interaction between actin and myosin. Calcium also supports nerve function, aiding in nerve impulse transmission. Additionally, calcium contributes to blood clotting and various cellular functions. Marine calcium can contribute to meeting daily calcium requirements, supporting these physiological processes.
Using Marine Calcium Supplements
When considering marine calcium supplements, adhere to the dosage instructions provided on the product label. Calcium is absorbed best when taken in smaller doses, generally 500 to 600 milligrams. If a daily intake of 1,000 milligrams is desired, it is recommended to split this into two or more doses throughout the day.
Most calcium supplements, including many marine forms, are best absorbed when taken with food, as stomach acid produced during eating aids in absorption. It is also important to be aware of potential interactions with other medications, such as certain antibiotics or blood pressure medications, and to separate their intake. Consulting a healthcare professional before starting any new supplement is always recommended, especially for individuals with health conditions or those taking other medications.