Question: Do you have information about Calcium in diet (Also called: Diet - calcium)
Answer: Summary : Calcium is the most plentiful mineral found in the human body. The teeth and bones contain the most calcium. Nerve cells, body tissues, blood, and other body fluids contain the rest of the calcium.

Function : Calcium is one of the most important minerals for the human body. It helps form and maintain healthy teeth and bones. A proper level of calcium in the body over a lifetime can help prevent osteoporosis.  Calcium helps your body with:  - Building strong bones and teeth  - Clotting blood  - Sending and receiving nerve signals  - Squeezing and relaxing muscles  - Releasing hormones and other chemicals  - Keeping a normal heartbeat

Food Sources : CALCIUM AND DAIRY PRODUCTS  Many foods contain calcium, but dairy products are the best source. Milk and dairy products such as yogurt, cheeses, and buttermilk contain a form of calcium that your body can easily absorb.  Whole milk (4% fat) is recommended for children ages 1 to 2. Adults and children over age 2 should drink low-fat (2% or 1%) milk or skim milk and other dairy products. Removing the fat will not lower the amount of calcium in a dairy product.  - Yogurt, most cheeses, and buttermilk are excellent sources of calcium and come in low-fat or fat-free versions.  - Milk is also a good source of phosphorus and magnesium, which help the body absorb and use calcium.  - Vitamin D is needed to helpyour body use calcium. Milk is fortified with vitamin D for this reason.    OTHER SOURCES OF CALCIUM  Other sources of calcium that can help meet your body's calcium needs include:  - Green leafy vegetables such as broccoli, collards, kale, mustard greens, turnip greens, and bok choy or Chinese cabbage  - Salmon and sardines canned with their soft bones  - Almonds, Brazil nuts, sunflower seeds, tahini, and dried beans  - Blackstrap molasses    Calcium is often added to food products. These include foods such asorange juice, soy milk, tofu, ready-to-eat cereals, and breads. These are a very good source of calcium for people who do not eat a lot of dairy products.  Ways to make sure you get enough calcium in your diet:  - Cook foods in a small amount of water for the shortest possible time to keep more calcium in the foods you eat. (This means steaming or sauting to cook instead ofboiling foods.)  - Be careful aboutthe other foods you eat with calcium-rich foods. Certain fibers, such as wheat bran, and foods with oxalic acid (spinach and rhubarb) can bind with calcium and prevent it from being absorbed. This is why leafy greens are not considered an adequatesource of calcium by themselves, because your body is unable to utilize much of the calcium they contain. People on a vegan diet need to be sure to also include soy products and fortified products in order to get enough calcium.   DIETARY SUPPLEMENTS  Calcium is also found in many multivitamin-mineral supplements. The amount varies, depending on the supplement. Dietary supplements may contain only calcium, or calcium with other nutrients such as vitamin D. Check the label on the Supplement Facts panel of the package to determine the amount of calcium in the supplement. Calcium absorption is best when taken in amounts of no more than 500 mg at a time.  Two commonly available forms of calcium dietary supplements include calcium citrate and calcium carbonate.  - Calcium citrate is the more expensive form of the supplement. It is taken up well by the body on a full or empty stomach.  - Calcium carbonate is less expensive. It is absorbed better by the body if taken with food. Calcium carbonate is found in over-the-counter antacid products such as Rolaids or Tums. Each chew or pill usually provides 200 to 400 mg of calcium. Check the label for the exact amount.    Other types of calcium in supplements and foods include calcium lactate, calcium gluconate, and calcium phosphate.

Side Effects : Increased calcium for a limited period of time does not normally cause side effects. However, receiving higher amounts of calcium over a long period of time raises the risk of kidney stones in some people.  Those who do not receive enough calcium over a long period of time can develop osteoporosis (thinning of bone tissue and loss of bone density over time). Other disorders are also possible.  People with lactose intolerance have trouble digesting lactose, the sugar in milk. Over-the-counter products are available that make it easier to digest lactose. You can also buy lactose-free milk at most grocery stores. Most people who do not suffer from severe lactose-intolerance are still able to digest hard cheeses and yogurt.  Tell your health care provider about any dietary supplements and medicines you take. Your provider can tell you if those dietary supplements might interact or interfere with your prescription or over-the-counter medicines. In addition, some medicines might interfere with how your body absorbs calcium.

Recommendations : The preferred source of calcium is calcium-rich foods such as dairy products. Some people will need to take a calcium supplement. How much calcium you need depends on your age and gender. Other factors, such as pregnancy and illnesses, are also important.  Recommendations for calcium, as well as other nutrients, are provided in the Dietary Reference Intakes (DRIs) developed by the Food and Nutrition Board at the Institute of Medicine. DRI is a term for a set of reference intakes that are used to plan and assess the nutrient intakes of healthy people. These values, which vary by age and gender, include:  - Recommended Dietary Allowance (RDA): The average daily level of intake that is enough to meet the nutrient needs of nearly all (97 to 98%) healthy people. An RDA is an intake level based on scientific research evidence.  - Adequate Intake (AI): This level is established when there is not enough scientific research evidence to develop an RDA. It is set at a level that is thought to ensure enough nutrition.   The preferred source of calcium is calcium-rich foods such as dairy products. Some people will need to take a calcium supplementif they do not get enough calcium from the foods they eat.  Infants (AI)  - 0to 6 months: 200 milligrams per day (mg/day)  - 7to 12 months: 260 mg/day    Children and Adolescents (RDA)  - Age 1to 3: 700 mg/day  - Age 4to 8: 1,000 mg/day  - Age 9 to 18: 1,300 mg/day    Adults (RDA)  - Age 19to 50: 1,000 mg/day  - Age 50to 70: Men - 1,000 mg/day; Women - 1,200 mg/day  - Over age 71:1,200 mg/day    Pregnancy and breast-feeding (RDA)  - Age 14to 18: 1,300 mg/day  - Age 19to 50: 1,000 mg/day    Up to 2,500to 3,000 mg a day of calcium from dietary sources and supplements appears to be safe for children and adolescents, and 2,000to 2,500 mg a day appears to be safe for adults.  The following list can help you determine how much calcium you are getting from food:  - 8-ounce glass of milk = 300 mg of calcium  - 1.5 ounces of Swiss cheese = 300 mg of calcium  - 6 ounces of yogurt = 300 mg of calcium  - 3 ounces of sardines with bones = 200 mg of calcium  -  cup of cooked turnip greens = 100 mg of calcium  -  cup of almonds = 100 mg of calcium  - 1 medium orange = 50 mg calcium  - 1 medium baked sweet potato = 50 mg calcium   Vitamin D is needed to help the body absorb calcium. When choosing a calcium supplement, look foronethat also contains vitamin D.)