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calcium
calcium
A Dictionary of Food and Nutrition
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2005
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© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information)
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calcium The major inorganic component of bones and teeth; the total body content of an adult is about 1–1.5 kg (15–38 mol). The small amounts in blood plasma (2.1–2.6 mmol/L, 85–105 mg/L) and in tissues play a vital role in the excitability of nerve tissue, the control of muscle contraction and the integration and regulation of metabolic processes.
The absorption of calcium from the intestinal tract requires
vitamin D, and together with parathyroid hormone, vitamin D also controls the body's calcium balance, mobilizing it from the bones to maintain the plasma concentration within a very narrow range. An unacceptably high plasma concentration of calcium is
hypercalcaemia.
Loss of calcium from bones occurs as a normal part of the ageing process, and may lead to
osteoporosis.
The richest
sources of calcium are milk and cheese; in some countries it is added to flour. Other rich sources include: haggis, canned pilchards and sardines, spinach, sprats, tripe.
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Calcium: the essential mineral. (Formulation & Ingredient Challenges).
Magazine article from: Prepared Foods; 11/1/2002; ; 700+ words
; Formulators can help Americans get the calcium they need by combining various calcium-rich, dairy-based ingredients into their...prompted the food industry to respond by adding calcium to foods and beverages. Recently, mostly dairy...
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Calcium is everywhere.(Brief Article)
Newspaper article from: Women's Health Letter; 9/1/2001; ; 700+ words
; ...noticed that many women tend to think of the calcium they're getting as coming solely from...or dairy products. This isn't true. Calcium is everywhere. If you're eating a good...leafy vegetables, you're getting more calcium than you think. This is good news for...
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Calcium: the chosen form: fortifying products with calcium requires an understanding of the benefits of various forms and their interactions.(global ingredients in use)
Magazine article from: Prepared Foods; 5/1/2004; ; 700+ words
; The words an "excellent source of calcium" occupy a space on the front of a box...reserved for products containing a level of calcium exceeding 20% of the United States' Daily Value (D.V.) for calcium. The demand for calcium is based on...
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Calcium formate shows promise
Magazine article from: Functional Foods & Nutraceuticals; 10/1/2005; ; 700+ words
; The preeminent supplement and food I enrichment form of calcium is the carbonate salt. Calcium carbonate enjoys a high percent (approximately 40 per cent) of calcium content by weight, and is one of the least expensive forms of calcium...
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Calcium fortification: the advantages of dairy-based powder.(Avonmore Waterford Ingredients' XtraCal natural milk calcium product)
Magazine article from: Food Processing; 6/1/1999; 700+ words
; XtraCal, a 100 percent natural milk calcium product, is being launched for use as a calcium source in foods and supplements. XtraCal...powder isolated from milk and contains 23 percent calcium and 40 percent phosphorous. Dairy-derived...
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Calcium supplements: the way to go? (calcium expert Connie Weaver)(includes related information on calcium requirements, on lead levels in calcium supplements, and on vitamin D and exercise)(Interview)
Newspaper article from: Nutrition Action Healthletter; 4/1/1998; ; 700+ words
; Q. Should people take calcium supplements? A: I recommend that people get enough calcium in their diet, but I recognize that a lot of...get enough from foods that naturally contain calcium. So that leaves you with fortified foods or...
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Calcium Counts.(dairy products, and other foods, are good sources of calcium, which is important for the body)
Magazine article from: Current Health 2, a Weekly Reader publication; 10/1/1999; ; 700+ words
; You need calcium to help build strong bones and more. Here...mustache. Drinking milk is one way to get the calcium your body needs. Many teens, however, aren't getting enough. "I know calcium is important for bones and teeth," says...
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Ionic Calcium Determination in Skim Milk with Molecular Probes and Front-Face Fluorescence Spectroscopy: Simple Linear Regression
Magazine article from: Journal of Dairy Science; 11/1/2006; ; 700+ words
; ...of this study was to determine if the ionic calcium content of skim milk could be determined using...spectroscopy. Current methods for determining ionic calcium are not sensitive, overestimate ionic calcium, or require complex procedures. Molecular...
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Calcium revisited.
Magazine article from: Townsend Letter for Doctors and Patients; 11/1/2002; ; 700+ words
; ...health?,' and the majority will answer 'Calcium!' Yet, despite this general knowledge about calcium, the average American female obtains well...Recommended Daily Allowance (RDA)for calcium throughout the majority of her life. For...
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Calcium. (Good Sources of Nutrients) (Pamphlet)
Newspaper article from: Pamphlet by: U.S. Department of Agriculture; 1/1/1990; 700+ words
; ...By a Good Food Source? A good food source of calcium contains a substantial amount of calcium in relation to its calorie content and contributes...Recommended Dietary Allowance (U.S. RDA) for calcium in a selected serving size. The U.S. RDA...
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calcium
Book article from: The Oxford Companion to the Body
calcium is crucial to all physiological function...average human body contains just over 1 kg of calcium, more than 99% of it in the skeleton...its essential supportive role. Skeletal calcium is not, however, inert. Bone contains...
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Calcium
Encyclopedia entry from: Encyclopedia of Food and Culture
CALCIUM CALCIUM. Calcium (Ca 2 ) is a silver-white metallic element of the alkaline-earth group. Ninety-nine percent of calcium in the human body is in bone and teeth. The remaining one percent is in blood and body fluids. In addition...
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Calcium Channel Blockers
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
Calcium Channel Blockers Definition Calcium channel blockers are medicines that slow the movement of calcium into the cells of the heart and blood vessels. This, in turn, relaxes blood vessels, increases the supply of oxygen-rich blood to...
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Calcium carbonate
Encyclopedia entry from: The Gale Encyclopedia of Science
Calcium carbonate Calcium carbonate, CaCO 3 , is one of the most common compounds on Earth...mineral forms, including limestone, marble, travertine, and chalk. Calcium carbonate also occurs combined with magnesium as the mineral dolomite...
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Phosphorus and Calcium
Encyclopedia entry from: Encyclopedia of Food and Culture
PHOSPHORUS AND CALCIUM PHOSPHORUS AND CALCIUM. Phosphorus and calcium are essential macronutrients in the human diet. Most of the phosphorus in the human body is found in association with calcium (as the mineral complex hydroxyapatite) in bones...
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