LifeCare Chiropractic

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Calcium Carbonate

Effect of Calcium Carbonate on the Absorption of Levothyroxine – (11-09-00)

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Effect of Calcium Carbonate on the Absorption of Levothyroxine

Do we really need more evidance to avoid calcium carbonate?? The unfortunate situation here is that the age group likely to take synthetic thyroid hormone is also likely to be taking calcium to avoid osteoporosis. And many doctors are still recommending TUMS and other sources of calcium carbonate to their patients.

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The acute effects of calcium on calcium and bone metabolism – (08-27-01)

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The acute effects of calcium on calcium and bone metabolism

There has always been much controversy on the type, dosage and timing of calcium supplementation. I am not a firm believer in calcium carbonate due to the need for stomach acid for absorption (and almost all of us become deficient as we get older) and support the use of calcium citrate, malate or MCHC more strongly. This article finds that the timing of intake (morning or evening) does not affect the absorption (based on calcium’s effect on PTH secretion).

AJCN — Abstracts: Kärkkäinen et al. 74 (3): 335

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CALCIUM CARBONATE NOT A WAY FOR BONE HEALTH – (10-04-04)

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Comparison of the effects of calcium loading with calcium citrate or calcium carbonate on bone turnover in postmenopausal women

This one has been an ongoing debate in the natural healthcare field for some time now. While this is a small study, and one study does not constitute a definitive answer, I usually tell patients that, if they are serious about bone health, then calcium carbonate is NOT the way to go. So, toss the TUMS and pick up calcium citrate or MCHC. SpringerLink – Article –

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