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12 Ways To Boost Your Calcium

Here are the facts you should know to make the most of the calcium in your diet or any calcium supplements you take.

1. Stress from tension and worry can decrease calcium absorption. The calcium in the diet is excreted instead of being used by the body.


2. Labels on calcium supplements can be misleading. The important figure is the amount of elemental calcium provided by the supplement. This is the actual amount of useable calcium. The rest of the calcium in the tablet is coupled with a salt that makes it unavailable to the body. For example, calcium glutamate is only 9 percent elemental calcium. A 500 mg tablet of calcium glutamate may contain only 45 mg of elemental calcium. Calcium carbonate, on the other hand, is 40 percent elemental calcium; 500 mg of calcium carbonate would provide 200 mg of useable calcium. Some labels list both the type of calcium compound in the supplement and the amount of elemental calcium provided. Others don’t. Read labels carefully and compare several brands when you shop.

3. Calcium is best absorbed when taken in smaller amounts more frequently and with meals. For example, your body absorbs more calcium if you take one 250 mg tablet twice a day rather than one 500 mg tablet once a day. If a higher dose calcium tablet is a better buy, break it in half.

4. Dairy products are a rich source of calcium, and lactose, the sugar contained in milk, facilitates calcium absorption. However, chocolate milk is not a good source of calcium. Because chocolate contains calcium-binding oxalates, it can interfere with calcium absorption.

5. Soft drinks that contain citric and phosphoric acid can decrease the absorption of calcium. A 12-ounce cola may rob the body of 100 mg of calcium.

6. Vitamin C improves the absorption of calcium, which is why calcium-fortified orange juice makes sense.

7. High-fibre diets can interfere with calcium absorption, so best not to mix a high fibre meal with a high calcium one. If you do mix them, boost your calcium as you increase your fibre.

8. The calcium-to-phosphorus ratio of a food or supplement determines how much of the calcium is absorbed. The ideal calcium–phosphorus ratio is 2 to 1, close to the proportion found in human milk. The higher the phosphorus content of the food, the more calcium is excreted in the urine, leading to a loss of calcium. Foods high in phosphorus (such as meat, poultry, corn, potatoes, beer) can interfere with calcium absorption.

9. The presence of estrogen facilitates calcium absorption, so women after menopause are at increased risk of calcium deficiency and therefore need to increase their daily intake of calcium.

10. Vegans may run the risk of calcium deficiency because the calcium in vegetables, like iron, is bound by the fibres and phytates (mineral-building chemicals in plants) in the vegetables and may interfere with calcium absorption. However, vegetables have a lower phosphate content than meat, which improves calcium absorption. Also, most people have the enzyme phytase, which breaks down the phytic acid in vegetables.

11. Couch-potatoism, or lack of exercise, may contribute as much, or more, to osteoporosis than lack of calcium. Weight-bearing exercise (just about any exercise except swimming and cycling) not only builds muscle, it builds bone.

12. Ignore what you read about losing bone mass while breastfeeding. After weaning, breastfeeding mothers regain the bone mass they may have lost. Some even get a perk by regaining more.

This information appears with the permission of William Sears, M.D and www.AskDrSears.com.

Related Articles:
Boning Up: Why You Need Calcium
Muscle Fatigue May Be Caused by Calcium Loss
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