Listed below is a dietary reference guide published by National Academy of Sciences Institute of Medicine.
(One serving of dairy products provides 300mg of calcium.)
0 - 6 months
210 milligrams/day
6 - 12 months
270 milligrams/day
1 - 3 years
500 milligrams/day
4 - 8 years
800 milligrams/day
9 - 18 years
1,300 milligrams/day
Adults 19 - 50 years
1,000 milligrams/day
Adults 51+ years
1,200 milligrams/day
In looking for a calcium supplement, it is important to look for the elemental calcium content on the label. This is the actual amount of calcium within the supplement. Also, there are other factors that determine how much calcium is absorbed - the conditions of the small intestine, the amount of Vitamin D in the body, along with the actual type of calcium supplement. Calcium Carbonate is the common type found in Tums, etc. (Coral Calcium is a popular supplement, but it essentially is a type of calcium carbonate.) Because it requires more stomach acid to absorb, it is usually suggested to take it after meals. Calcium Citrate does not require the extra stomach acid, so it can be taken at any time.
(One serving of dairy products provides 300mg of calcium.)
0 - 6 months
210 milligrams/day
6 - 12 months
270 milligrams/day
1 - 3 years
500 milligrams/day
4 - 8 years
800 milligrams/day
9 - 18 years
1,300 milligrams/day
Adults 19 - 50 years
1,000 milligrams/day
Adults 51+ years
1,200 milligrams/day
In looking for a calcium supplement, it is important to look for the elemental calcium content on the label. This is the actual amount of calcium within the supplement. Also, there are other factors that determine how much calcium is absorbed - the conditions of the small intestine, the amount of Vitamin D in the body, along with the actual type of calcium supplement. Calcium Carbonate is the common type found in Tums, etc. (Coral Calcium is a popular supplement, but it essentially is a type of calcium carbonate.) Because it requires more stomach acid to absorb, it is usually suggested to take it after meals. Calcium Citrate does not require the extra stomach acid, so it can be taken at any time.
Supplements can come in pills, chewable tablets, even powders. Each has a different dissolution and absorption rate, so an individual can try different forms to find the one which works best for himself. Also, the body doesn't distinguish between calcium through food, or supplement, or even the "fortified" foods (i.e. OJ with extra calcium), so a combination of what works the best for each individual can be done. There is suggestion that taking a calcium supplement at bedtime could possibly stop bone loss that occurs overnight. The one caution in calcium intake would be not to consume more than 2500 mg of elemental calcium per day.
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