Yes, the citrate from calcium citrate can increase absorption of aluminum from medications (such as aluminum hydroxide in the antacid Maalox). It can also increase absorption of aluminum from foods but, in individuals with normal kidney function, this does not result in increased retention of aluminum in the body. If you need supplemental calcium and an antacid, consider taking Tums, which contains calcium carbonate rather than calcium citrate. For more details see the Concerns and Cautions section of the Calcium Supplements Review >>
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Is there a danger of getting too much calcium from Tums? I take them frequently for heartburn. >>
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Is it safer to get calcium from foods than from supplements? How about from calcium-fortified orange juice and non-dairy milks? >>
How much calcium from supplements is too much? >>
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