Calcium Interactions
If you have questions, please consult your physician.
Vitamin D is Needed
Calcium is regulated by vitamin D that helps your body absorb the calcium and place it in your bones. It is also controlled by calcitonin that helps your bones store calcium, and by the parathyroid hormone that regulates the transfer of calcium from the bones to the blood. With a lack of vitamin D, less than 10% of dietary calcium can be absorbed.Calcium, Lead, Aluminum and Nutritients
Calcium in the intestines blocks lead absorption. Aluminum containing antacids can inhibit calcium absorption. Too much calcium can interfere with the absorption of copper, iron, magnesium, manganese and zinc.Calcium, Magnesium, Potassium, Phosphorus
High levels of calcium, magnesium or potassium can produce low levels of the other. Calcium and phosphorus work together to create healthy bones and teeth. If phosphorus intake is too high, your body gets rid of the extra and calcium with it.Calcium, Sugar, Antibiotics, Iron and Aspirin
Large amounts of sucrose can increase calcium excretion. Sugars and phosphoric acid are the main ingredients in soft drinks. Calcium reduces the absorption of tetracycline antibiotic, iron and aspirin when taken at the same time.Absorption and Calcium Deficiencies
Large amounts of fat, oxalic acid found in chocolate and rhubarb, and phytic acid found in grains can prevent calcium absorption. Contraceptive pills, anti-epileptic drugs, diuretics, corticosteroids for rheumatoid arthritis, asthma and IBD, and some antidepressants may create a calcium deficiency. A deficiency can be created by smoking, poor absorption due to lactose intolerance and absorption disorders such as coeliac disease.Kidney Function
Do not take calcium supplements if you have impaired kidney functions or history of kidney/bladder stones, or if you have constipation. Calcium may increase urinary excretion. It may increase the formation kidney stones.REFERENCES
Smith L, "Breathing Easy" Feed Your Kids Right. 1979 Dell Pub. Co. Inc.
Whitney EN, Rolfes SR. Water and the Major Minerals. In: Understanding Nutrition. Seventh Edition, St. Paul, MN: West Publishing Company; 1996; 448-454.
Somer E. Minerals. In: The Essential Guide to Vitamins and Minerals, New York, NY Harper Perennial: New; 1995; 89-94.
Van Fleet J. "How a mineral can vitalize your health", Magic of Catalytic Health Vitalizers, 1980, Parker Publishing.
Linas RR, "Calcium in Synaptic Transmission", Scientific American, October, 1982.
Bucher HC, Cook RJ, Guyatt GH, et al. Effects of dietary calcium supplementation on blood pressure. Calcium meta-analysis of randomized controlled trials. JAMA 1996;275:1016-22.
Mundy GR, "Calcium, Homeostatis: Hypercalcemia and Hypocalcemia", Professor and Head, Division of Endocrinology and Metabolism, University of Texas.
Barefoot RM, Reich CJ; The Calcium Factor; 1992: Bokar Consultants, AZ
McCarron K, Reusser M. 1991. "The integrated effects of electrolytes on blood pressure." Nutr Rep 9:57,62,64.
Krook L, et al. Human periodontal disease. Morphology and response calcium therapy. Cornell Vet 1972;62:32-53.
Gregor JL. "Effect of variations in dietary protein, phosphorous, electrolytes and vitamin D on calcium and zinc metabolism." In CE Bodwell and JW Erdman, Jr., eds. Nutrient Interactions. New York, NY, Marcel Dekker, Inc; 1988.
Swope MR. "The Greenleaves of Barley", 1987; Swope Enterprises, Inc. Phoenix, AZ
Villar J and Repke JT. Calcium supplementation during pregnancy may reduce preterm delivery in high-risk populations. Am J Obstet Gynecol 1990;163: 1124-31.
Penland JG, Johnson PE. Dietary calcium and manganese effects on menstrual cycle symptoms. Am J Obstet Gynecol 1993;168:1417-23.
Marshall RW, Cochran M, Hodkginson A. Relationship between calcium and oxalic acid intake in the diet and their excretion in the urine of normal and renal-stone forming subjects. Clin Sci 1972;43:91-9.
Curhan GC, Willett WC, Rimm EB, Stampfer MJ. A Prospective study of dietary calcium and other nutrients and the risk of symptomatic kidney stones. New England Journal of Medicine 1993;328:833-8.
Lips P, Graafmans WC, Ooms ME, et al. Vitamin D supplementation and fracture incidence in elderly persons. Ann Intern Med 1996; 124: 400-6.
Venter JC, Tiggle D, Structure and Physiology of the Slow Inward Calcium Channel, 1987, Alan R Liss. Inc.
The Role of Calcium in the Biological System, 1985, CRC Press, Inc.
The Coral Calcium Story · Govt and Scientific Research on Calcium
Bio-Absorption of Calcium · Chemical Analysis of Coral Calcium
Coral Minerals and Sodium · Ionic Coral Calcium
Coral and Ecology
Symptoms of a Too Acid Body · Oxygen and Health
Calcium and Health · Marine Grade Coral Calcium
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