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Don't take calcium and thyroid meds together.

Friday, April 11, 2014

Calcium carbonate -
Scientists report that consuming calcium carbonate, the most recommended form of calcium supplements can interfere with your thyroid medication. According to a study done at UCLA, calcium can prevent the absorption of thyroxine. Now this just doesn't seem fair... as women are most likely to be hypothyroid AND at risk for osteoporosis. However, if you take your thyroid in the morning and your calcium supplements at night, you can prevent this problem.
JAMA 2000(283)21:2822-2825

Member Comments About This Blog Post:
ARTJAC 4/12/2014 1:30AM


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FROSTY99 4/11/2014 4:11PM

    THX for sharing. DH takes thyroid meds but not the calcium and his dr told him to take it at night away from his other meds. Such a fine line we dance!

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IAMWINNING 4/11/2014 3:51PM

    I learned a few things about taking additional thyroid medicine:

1. take it 30 minutes before a meal
2. Don't take any calcium or calcium-containing food for 4 hours after taking the thyroid medicine.

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1CRAZYDOG 4/11/2014 1:09PM

    Exactly! Calcium should be taken @ night since that's when it's absorbed best anyway. AND it should be paired w/a source of magnesium and Vit. D so it's absorbed.

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-POLEDANCEGIRL- 4/11/2014 11:54AM


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GARDENCHRIS 4/11/2014 11:51AM

    Good to know!

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LIS193 4/11/2014 11:14AM


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_BABE_ 4/11/2014 11:06AM

    Definitely always let your pharmacist know ALL you take to be careful of combos that are not good for you.

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RD03875 4/11/2014 9:25AM

    Sticking with my Dr suggestion taking the thyroid medication in the morning and my caltrate in the evening. Everything works fine for me.

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GADGETCC 4/11/2014 9:25AM

    Great information! A pharmacist is a great person to ask about all of this, even if you are not using prescriptive drugs. They will answer your questions. I found out that it was not good to take my calcium with the iron that I need for my anemia.

I read to take calcium in two small doses of 500 - 600 mg since the body cannot absorb large quantities of calcium at one time. Also calcium does not necessarily need to be taken with meals.

Thanks for sharing! You have a great blog!

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DEB62BIE62 4/11/2014 9:12AM

    Thanks for sharing.

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USMAWIFE 4/11/2014 8:41AM

    there are also new studies out there taking your thryoid meds at bedtime is more effective than first thing in the morning

that way those who have milk in their coffee or eat foods with calium in them are able to do that without the 4 hour wait between thryoid meds and calcium anytime.

I swtitched and it is like night and day difference with how I feel each day

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2HAMSDIET 4/11/2014 8:25AM

    I read some where that we need to take the calcium caltrate as it is more easily absorbed by the body. Now this is the chemical not the brand. The brand Claltrate doesn't always have this type of calcium l in the bottles. It is some thing to look at.

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SWEETNEEY 4/11/2014 8:09AM

    Another study. nice

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