The Contentions About the Use of Milk and Other Dairy Products in Nutrition Essay

Many people choose to avoid milk and other dairy products because they contain fat, cholesterol, allergenic proteins, lactose, and frequently traces of contamination. Milk is also linked to juvenile-onset diabetes, and other serious conditions. Happily, there are plenty of other, safer and more reliable sources of calcium.Keeping your bones strong depends more on preventing the loss of calcium from your body than on boosting your calcium intake.Some cultures consume no dairy products and typically ingest only 175 to 475 milligrams of calcium per day. However, these people generally have low rates of osteoporosis. Many scientists believe that exercise and other factors have more to do with osteoporosis than calcium intake does.Calcium in the Body. Almost all the calcium in the body is in the bones. There is a tiny amount in the bloodstream which is responsible for important functions such as muscle contractions, maintenance of the heartbeat, and transmission of nerve impulses.We constantly lose calcium from our bloodstream through sweat and other excretions. It is renewed with calcium from the bones. In this process, bones continually lose calcium. This bone calcium must be replaced from food. Calcium needs change throughout life. Up to the age of 30 or so, we consume more calcium than we lose. Adequate calcium intake during childhood and adolescence is especially important. Later, the body begins to slip into negative calcium balance and the bones start to lose more calcium than they take up.The loss of too much calcium can lead to soft bones or osteoporosis.How rapidly calcium is lost depends, in part, on the kind and amount of protein you eat as well as other diet and life-style choices.Reducing Calcium Loss. A number of factors affect calcium loss from the body Diets that are high in protein cause more calcium to be lost through the urine. Pro tein from animal products is much more likely to cause calcium loss than protein from...

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