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A member asked:
How long does it take for calcium citrate supplements to enter your system after taking them? i don't take them with food.
3 doctors weighed in across 2 answers
A couple of hours: Calcium will start entering circulation in a couple of hours, provided you have sufficient vitamin d in your system.
Answered 11/28/2017
4.9k views
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Calcium citrate: Both the calcium and the citrate will be absorbed within 4 hours. Vitamin D helps with intestinal calcium absorption. You need 2000 IU per day of vitamin D.
Answered 5/25/2015
3.8k views
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