Coral calcium is a dietary supplement made from fossilized coral containing various minerals such as calcium, magnesium, and trace minerals. It is a form of calcium extracted from fossilized coral reefs (a rock comprised of colonies of hundreds to thousands of tiny individual coral polyps). These are marine invertebrates (with hard exoskeletons consisting of calcium carbonate), mainly present on the island of Okinawa, Japan. Coral calcium contains calcium carbonate and trace minerals like Magnesium. Proponents state that it has better absorption than other calcium supplements.
It can promote bone health and provide various health benefits, including improved bone health, prevention of diseases like osteoporosis, and PH balance. It is known for its natural sources and health-benefit properties. In the 1990s, the superiority of its absorption and added health benefits were the reasons it gained popularity.
What is coral calcium?
It is a natural Coral Calcium Supplement containing calcium carbonate with added trace minerals such as magnesium, usually derived from coral sand deposits. Normally, these sand deposits, which were formerly a component of a coral reef, are taken straight from the shore or the nearby shallow waters.
To properly manufacture coral calcium, the coral sand deposits are first refined to remove any impurities or other undesired materials, then ground into a coral mineral powder. This powder is then utilized to create different supplements, including powders, tablets, and capsules. Calcium carbonate is the primary and most commonly used type of calcium in supplements. It is necessary for the body’s other critical functions, including nerve signaling, muscular contraction, and maintaining strong bones and teeth.
In addition to calcium, it has trace amounts of other minerals, such as magnesium, which are vital for the health of muscles and nerves. These days, the primary uses of it are in the prevention or treatment of low calcium levels in those whose diets aren’t sufficient in this nutrient. Supporters claim that it has superior bioavailability than other calcium supplement forms, like calcium carbonate and citrate, and they report several health benefits, such as stronger bones and more energy.
Health benefits of coral calcium
Bone health
It contains a high concentration of calcium and magnesium, two elements vital for maintaining bone health and density; it is touted as having the ability to prevent osteoporosis (a condition in which bones become weak and brittle due to loss of bone density). It contains vital minerals like magnesium, which promotes calcium absorption and metabolism, and calcium, essential for bone density. It also includes a few trace minerals, such as manganese and zinc, that aid in the development of bones.
Cardiovascular health
Numerous research studies associate a high calcium diet with slightly reduced systolic blood pressure. Magnesium and calcium, two coral trace minerals found in coral calcium, benefit cardiovascular health overall. Calcium is necessary for healthy muscular function, including heart muscle, and it also aids in blood vessel contraction and relaxation, which lowers blood pressure. Magnesium is essential for normal blood pressure, a steady heartbeat, and avoiding arterial calcification (calcium deposits buildup in the walls of arteries).
Neuromuscular function
Calcium is essential to release neurotransmitters, nerve signals, and muscle contraction. Magnesium is critical for nerve and muscle function and relaxation. When combined, these two vital minerals help avoid problems like spasms, muscle cramping, and nervous system disruptions.
Digestive Health Benefits
Coral calcium’s main Benefits are related to its ability to assist the body’s PH levels balance, resulting in a more alkaline environment. Some believe this may enhance general gastrointestinal health and digestibility. Food is moved through the system more easily because calcium is essential for properly operating the digestive enzymes and muscles of the digestive tract. Magnesium can stop constipation by encouraging bowel regularity.
How does Coral Calcium work in the body?
The calcium from the coral calcium supplements is absorbed in the intestines after ingestion. It is an important mineral needed for many body processes, such as the development and maintenance of strong bones and teeth, neurotransmission, muscle contraction, and blood clotting.
Bone Formation
The main component of teeth and bones is calcium, which when combined with phosphate, forms hydroxyapatite. This mineral gives bones strength and structure and prevents weak and brittle bones from conditions like osteoporosis.
Neurotransmission
Calcium plays a vital role in neurotransmission. Neurotransmitters, which carry messages between nerve cells, are released when calcium ions are present. Upon the arrival of calcium ions at the terminal of a neuron, neurotransmitters are released into the synaptic cleft to facilitate the transmission of the signal to the subsequent neuron.
Muscle contraction
Calcium is required for muscles to contract. In response to nerve stimulation, the sarcoplasmic reticulum releases calcium ions into muscle cells. This calcium release binds to a protein called troponin, which facilitates the binding of actin and myosin, the proteins that contract muscles.
Blood clotting
It activates many clotting factors that combine to form a blood clot upon blood vessel damage, thereby preventing bleeding. However, the blood clotting mechanism may be compromised in the absence of enough calcium, which could result in more bleeding and bruises.
Recommended Dosage and Usage
Age, gender, and particular medical conditions can all affect the recommended daily allowances (RDAs) for calcium intake. The nutritional supplement known as “coral calcium” lacks specific RDAs that set it apart from other types of calcium. According to the Institute of Medicine (IOM) in the US, the following general RDAs for calcium from all sources (including coral calcium) are established:
- Infants (0-12 months): 200-260 mg/day
- Children (1-3 years): 700 mg/day
- Children (4-8 years): 1,000 mg/day
- Children and Teens (9-18 years): 1,300 mg/day
- Adults (19-50 years): 1,000 mg/day
- Adult Men (51-70 years): 1,000 mg/day
- Adult Women (51-70 years): 1,200 mg/day
- Adults (>70 years): 1,200 mg/day for both men and women
You can take this supplement with or without meals. While taking it with food may lessen the chance of stomach distress, it also hinders your body’s absorption of nutrients like zinc and iron.
Coral calcium dosage adjustments should be based on each individual’s dietary requirements and medical conditions. Generally, it is advised to take 500–1000 mg daily; however, elderly individuals or those with osteoporosis may require high dosages. Consider calcium intake; a diet rich in calcium may minimize the need for supplements. Lower dosages or certain changes may be required for people with kidney problems or those taking specific drugs. Always consult with a healthcare professional to find the right dosage for your unique health profile.
Potential Risks and Side Effects
Common side effects of coral calcium
Common adverse effects of coral calcium include gastrointestinal problems. Although constipation is more commonly reported, some people can also experience diarrhea. A few people have reported experiencing nausea and upset stomach.
Serious Risks
Hypercalcemia and kidney stones: Hypercalcemia, a condition in which the blood contains excessive amounts of calcium and results in symptoms such as nausea, confusion, and kidney disorder, can be brought on by a high consumption of coral calcium. Chronic hypercalcemia can damage the heart and bones. Moreover, kidney Stones such as calcium oxalate stones can develop due to elevated calcium levels.
Interaction with Medications
It interacts with antibiotics such as tetracyclines and fluoroquinolones, reducing their antibacterial activity. It also interacts with osteoporosis medications, particularly bisphosphonates.
Environmental and Ethical Considerations
Impact of coral harvesting on the marine environment
Coral calcium harvesting harms the physical structure of reefs when corals are removed, destroying habitats for many marine organisms and causing a loss of biological adversity. The loss of these structures due to Marine Coral Mineral harvesting might worsen coastal erosion and result in the destruction of shoreline habitats. Local fisheries and the larger marine environment may be impacted by ecological disruption.
Sustainable and Ethical sourcing practices
Choose products approved or certified by unique organizations that attest to ethical and sustainable sourcing methods. Seek vendors who guarantee reef-friendly harvesting to prevent destruction. Verify that suppliers abide by national and international laws pertaining to preserving and utilizing coral reefs. Coral calcium alternatives, such as plant-based calcium, are more environmentally friendly and are found in leafy greens or seaweed. Easily absorbed calcium citrate that is not dependent on coral sources. Reefs are not impacted by the production of calcium hydroxyapatite, extracted from bones and frequently seen in supplements. Synthetic calcium generated in a lab offers an environmentally friendly substitute without affecting the ecology.
Scientific Evidence and Research
Clinical trials have repeatedly shown their efficacy in increasing bone density and lowering the risk of fracture, as evidenced by the reviews in the Cochrane Database of Systematic Reviews (2015).
A further small and older human study indicates that coral calcium is more easily absorbed than the calcium in most calcium supplements. Coral calcium, in contrast to other calcium supplements, naturally contains trace amounts of trace elements and magnesium.
Research conducted in test tubes suggests that coral calcium may prevent dental cavities by remineralizing teeth’s enamel. Research on mice also suggests that coral calcium may help prevent age-related cognitive decline.
According to specific research, coral calcium may have an excellent bioavailability, one of which was published in the Journal of Nutritional Science and Vitaminology in 2002. However, direct comparisons with calcium citrate frequently reveal similar or less efficient absorption rates.
Sources such as the Journal of Nutritional Science and Vitaminology (2002) mention claims that extra trace minerals may be beneficial, however the evidence is not strong enough to prove these minerals are much healthier than the main forms of calcium.
While coral calcium may help maintain bone health, a 2007 study published in Osteoporosis International concluded that it was not more effective than calcium citrate or carbonate.
Final Thoughts
Coral calcium is fossilized Coral Minerals rich in trace minerals and calcium carbonate. It has been shown to improve pH balance, support heart and bone health, and improve bone health. There isn’t much scientific data to support these assertions, though. However, some Advocates used to believe that it is suitable for overall human bone health as it includes calcium. Proponents used to think that calcium combined with magnesium works better than other calcium supplements. Side effects and risks should be considered when taking coral calcium supplements.
