Tags: absorbable mineral, bone remodeling, Calcium Mineral, calcium-fortified, Daily Value, elemental calcium, Good food sources, human papillornavirus, human skeleton, Institute of Medicine, kidney stones, Mineral Description, neurotransmitters, osteoporosis, parathyroid hormone, phosphorus, stomach acidTopic: Supplement|
Daily Value: 1,000 milligrams
Good Food Sources: Skim milk, nonfat yogurt, cheeses, collard greens, mustard greens, kale, broccoli, canned salmon with bones, sardines with bones, corn tortillas processed with lime, calcium-fortified orange juice
By now, just about everyone knows that getting enough calcium helps prevent diseases such as osteoporosis. Less well known is just how calcium goes about doing this.
When you eat cheese or drink milk, the calcium in these foods is absorbed through your small intestine and into your blood. The amount of calcium in your blood is regulated by a substance called parathyroid hormone. When calcium intake is low, parathyroid hormone signals for bone to be broken down, releasing calcium into the bloodstream. “Diets with adequate calcium intake produce less parathyroid hormone, so that we conserve more calcium and more bone,” says professor of nutrition. Read the rest of this entry »