Calcium and Magnesium
Additional Information
A Calcium and Magnesium blend must be formulated with superior ingredients and in proper mineral ratios to enhance bioavailability and absorbability. Calcium should never be taken alone. As an example for Milk drinkers: Milk contains 8 parts calcium and only one part magnesium. Calcium needs magnesium in order to be assimilated into the body. In the case of drinking milk, magnesium will be pulled out of the body so the calcium can be processed, resulting in a magnesium deficiency. A high calcium and a low magnesium ratio in the body results in many problems. We have been instructed for years to get enough calcium. Little has been said of magnesium. Therefore it is in best wisdom if you plan on supplementing your calcium intake, it must be in a proper blend of calcium WITH magnesium. Since many factors can use up magnesium in your body, including stress, I prefer a ratio of two parts calcium to one part magnesium in a supplementation.
Calcium
Most individuals are aware of the benefits of calcium supplementation. Calcium is critical in the prevention of osteoporosis. Calcium, though, also appears to play a role in maintaining normal blood pressure. In addition, calcium is required by the body for blood clotting, muscle contraction and nerve transmission. Calcium may play a role in triglyceride and cholesterol reduction due to its fat binding properties within the gastrointestinal tract.
Calcium is present in dairy foods. It is also available from salmon, green leafy vegetables, tofu and sardines.
Calcium is found in many different forms within supplements. Studies of these different forms reveal the following. Calcium citrate/ malate is the best-absorbed form of this supplement. It is this form that most authorities recommend for enhanced bioavailability.
There are a number of additional factors that affect calcium absorption and use within the body including availability of specific trace minerals and Vitamin D.
How much Calcium should I take?
The National Academy of Sciences has recommended 1000 mg of calcium daily for adults ages nineteen to fifty. Adults over fifty should take 1200 mg daily. As calcium absorption and utilization in bone is dependent upon Magnesium, Vitamin D and Vitamin K, as well as specific trace minerals, supplementation with these is also necessary to maximize prevention of osteoporosis.
Side effects of Calcium:
Rarely side effects such as constipation and bloating can be seen with calcium supplements. Individuals with kidney disease and hyperparathyroidism should check with their health care professional prior to use. Calcium competes with a number of minerals for absorption therefore supplementation with a multi-mineral may be necessary to prevent decreased levels of other minerals.
Magnesium
While calcium is needed for muscle contraction, magnesium is needed for muscle relaxation. Think of your heart muscle. Your heart muscle, and any other muscle in your body, will have a "contraction" phase, then a "relaxation" phase. What occurs when a muscle is unable to relax? It goes into spasm. Spastic cervical (neck) muscles and other skeletal muscles are a good example. Have you ever heard of anyone who always has a very tight neck or other muscles that never seem to relax, usually therefore resulting in headaches? Muscle spasms, muscle cramps, muscle jerks, and muscle tics, eye tics, and hiccups are all caused buy a magnesium deficiency.
Modern stresses whether chemical, environmental, or mental, quickly deplete magnesium reserves, (which is often depleted faster than calcium reserves.) This often results in internal stress.
Excess calcium which has not been properly assimilated, due usually to a magnesium deficiency to process that calcium, can lead to gallstones, kidney stones, and calcium deposits on joints (often called arthritis).
Too much calcium and not enough magnesium can also cause PMS (pre-menstrual syndrome). This results in premature aging caused by the calcification of the female body parts.
As mentioned above, magnesium and calcium work together to control muscle action. With insufficient magnesium the muscles stay tense causing a cramp in the muscle. This could happen when you have too much calcium and too little magnesium. The same thing can occur in the heart, which is a muscle. The heart can go into spasm and not relax. I firmly believe this is one of the contributing causes for heart attacks. (Atherosclerosis (clogged arteries) is another very large risk factor for heart attacks.)
Magnesium deficiency can cause insomnia (inability to sleep), waking up with muscle spasms, cramps, tension and feeling uncomfortable.
Magnesium activates an enzyme located in all cell membranes. This enzyme controls the balance of sodium and potassium, keeping sodium in the fluid outside the cells and potassium inside the cells. Such a balance is essential for normal water balance, nerve cell activity and cellular energy production. Without sufficient cellular magnesium, potassium will be rapidly excreted from the body resulting in fatigue, heat exhaustion and weakness.
Magnesium is involved in over three hundred chemical reactions in the human body. It is critical in energy production, cellular replication and protein formation. Research has shown a role for magnesium in blood pressure reduction, enhanced cardiac function, improved energy in individuals with chronic fatigue syndrome, improved wellness in women with PMS and improved respiratory function in individuals with asthma. Magnesium is present in a number of foods including dark green vegetable, fish, meat and beans. Despite this, at least one study has shown that most individuals do not receive the optimum amount of 425 mg daily of magnesium. Individuals taking prescription diuretics, birth control pills, as well as diabetic individuals are at increased risk for magnesium deficiency. Severe magnesium deficiency may cause muscle weakness, fatigue, abnormal heart rhythms, and depression.
How much Magnesium should I take?
The listed "optimum" amount is 300 - 500 mg daily. However I prefer a ratio of two parts calcium to one part magnesium when taking supplementation.
Side effects of Magnesium:
At recommended use no serious toxicity exists. Excess magnesium often leads to diarrhea. Individuals with kidney disease should consult their health care professional prior to use.
References:
1. Kawano Y, Matsuoka H, Takishita S, Omae T. Effects of magnesium supplementation in hypertensive patients. Hypertension 1998;32:26065.
2. Howard JM, Davies S, Hunnisett A. Magnesium and chronic fatigue syndrome. Lancet
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5. Osborne CG, McTyre RB, Dudek J, et al. Evidence for the relationship of calcium to blood pressure. Nutr Rev 1996;54:36581.
6. Bell L, Halstenson CE, Halstenson CJ, et al. Cholesterol-lowering effects of calcium carbonate in patients with mild to moderate hypercholesterolemia. Arch Intern Med 1992;152:244144.
7. Levenson DI, Bockman RS. A review of calcium preparations. Nutr Rev 1994;52:22132 [review].
8. Levenson DI, Bockman RS. A review of calcium preparations. Nutr Rev 1994;52:22132 [review].
9. Murray M. Encyclopedia of Nutritional Supplements. Prima Publsihing, 1996.
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DISCLAIMER This information is provided for Educational Purposes Only and has NOT been designed to diagnose, treat or cure any health conditions. Please consult a qualified Health Care Professional with Nutritional Training to diagnose your health conditions and avoid self-diagnosis. The U.S. Food and Drug Administration have not evaluated statements about these health topics or any suggested product compositions.