Guest guest Posted October 29, 2003 Report Share Posted October 29, 2003 DOES YOUR CALCIUM CREATE MORE PROBLEMS THAN IT SOLVES? Healthy Solutions, Spring 2003 Dr. Cathy Carlson-Rink It is important to take a supplement that provides key nutrients for maintaining bone mass. But can too much calcium be a problem? More than you ever thought possible. North Americans have the highest rate of pasteurized milk and calcium supplement consumption - yet still have the highest rate of osteoporosis in the world. This is because too much calcium can deplete magnesium, zinc and iron(1), setting the stage for osteoporosis and fragile bones. Why, when North Americans have the highest rate of pasteurized milk and calcium supplement consumption - do they still have the highest rate of osteoporosis in the world? When choosing a calcium supplement it is important to consider several key factors: Higher Magnesium to Calcium Ratio - High doses of calcium causes magnesium deficiency. Magnesium deficiency negatively influences the quality of bone, has been linked with arteriosclerosis and can cause calcium to deposit in soft tissue. Without adequate magnesium, calcium cannot be properly utilized and becomes a pollutant rather than a nutrient. A study by Dr. Abraham that used a ratio of 1.2:1 magnesium to calcium, along with other nutrients (co-factors) resulted in significant increases in bone mass (3). So, I recommend this higher ratio of magnesium to properly utilize both supplemented and dietary calcium in the body. Liquid Form - Liquid supplements provide enhanced availability, as they do not require breakdown by the digestive tract before the active ingredients can be released and absorbed. Liquids also have a much larger surface area to volume ratio that allows for a greater number of absorption sites in the digestive tract. Decreased absorption of calcium supplements has been noted with patients with osteoporosis. Form of Calcium - I recommend calcium lactate and gluconate, which are ready to absorb because they are in an ionized and soluble state. Their absorption is approximately 45% even with low stomach acid, compared to calcium carbonate at only 4%. Those with low gastric acid (1/3 of people over age 60 and close to 1/2 of post- menopausal women) can absorb these forms of calcium. For those who have adequate acid levels, ionized calcium is still a benefit because it can be taken at any time and will not interfere with the absorption of co-factors since it does not need food to increase stomach acid. Dose of Calcium - I recommend low doses of calcium because they allow for the absorption of other nutrients (co-factors) which are absolutely essential for the proper utilization of calcium. Large doses of calcium, especially without the presence of adequate magnesium can cause the body to deposit calcium in soft tissue where it causes problems such as kidney stones and arteriosclerosis. Fruit Juice and Herb Base - The presence of fruit juice has been shown to enhance mineral absorption and retention (4) because it enhances stomach acid and because certain nutrients, such as calcium and zinc, only absorb together in the presence of food. A formula with added digestive herbs will stimulate digestion and reduce the common side effect of bloating. Added Co-factors - Clinical trials have shown vitamin D enhances the absorption of calcium (2). Zinc helps form the proteins found in bone tissue, is involved with the formation of the bone matrix, and also enhances the action of vitamin D. Unless food is present, calcium interferes with the absorption of co-factors, so it should not be found in high amounts in a non-food based multivitamin. Take your multi and calcium supplement at least 2 hours away from each other for the best results. No Harmful Additives - 70% of calcium supplements tested were found to be contaminated with lead (5). Ensure that heavy metal testing has been completed on your calcium product. A quality supplement will also guarantee no pesticide residues, preservatives, food colouring or added sugar. A liquid supplement that provides lower, absorbable doses of calcium, with a higher ratio of magnesium and a balance of added co- factors, is safe to take throughout one's life cycle. Those who have adequate absorption and proper utilization of calcium throughout their life are at the least risk for osteoporosis. Resources 1. Gaby, Alan R. Every Woman's Essential Guide to Preventing and Reversing Osteoporosis Prima Health, 1990 2. Peacock, M., Calcium Absorption Efficiency and Calcium Requirements in Children and Adolescents. American Journal of Nutrition, 1991. 54: p. 261S-265S. 3. Abraham, G. E., and H. Grewal, A Total Dietary Program Emphasizing Magnesium Instead of Calcium. Effect on Mineral Density of Calcaneous Bone in Postmenopausal Women on Hormonal Therapy. Journal of Reproductive Medicine, 1990 35: 503-507. 4. The Experimental Study of the Absorption and Utilization of Oyster Shell mixed with Fruit Juice. Wei Shen Yen Chiu, 1997. 26 (5): p. 333-6. 5. Encyclopedia of Nutritional Supplements by Michael Murray, 1996, Prima Publishing About Dr. Cathy Carlson-Rink Dr. Cathy Carlson-Rink is a licensed Naturopathic Physician and Registered Midwife. She completed her Bachelor of Science degree with Distinction in Physical Education through the University of Saskatchewan and her Doctorate of Naturopathic Medicine (N.D.), with a postgraduate specialization in Midwifery, from Bastyr University. She is recognized across Canada as the first licensed Naturopathic Physician also practicing as a Registered Midwife. She is a member of the B.C.N.A., the C.N.P. of B.C., and the C.N.A., and an instructor of Obstetrics and Pediatrics at the Boucher Institute of Naturopathic Medicine. Quote Link to comment Share on other sites More sharing options...
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