How much cinnamon is too much?

How much cinnamon is too much?

There are 12 comments on the Houston Chronicle story from Feb 4, 2008, titled How much cinnamon is too much?. In it, Houston Chronicle reports that:

Q: I've heard that consuming too much cinnamon can be harmful, but what, exactly, is the acceptable limit? I eat two tablespoons on my cereal each morning just because I like the flavor and I don't need added ... via Houston Chronicle

Join the discussion below, or Read more at Houston Chronicle.



#1 Feb 29, 2008
Does anyone know if there is a contra-indication between Coumadin and cinnamon? Thanks for any help with this question.

United States

#2 Feb 29, 2008
Judy wrote:
Does anyone know if there is a contra-indication between Coumadin and cinnamon? Thanks for any help with this question.
Hi Judy -

the only information I could find is in my printout of Dr. Gourmet's Coumadin and your diet - it reads 1 tsp. of ground cinnamon contains 0.7 of vitamin K.

So I guess, really low. I hope that helped!


Fremont, CA

#3 Feb 29, 2008
You learn something new every day! And I had thought there isn't any trace of vitamin K in cinnamon.....


#4 Mar 1, 2008
Thanks Shana

Indianapolis, IN

#5 Mar 3, 2008
Judy, you can eat anything you want while you are on Coumadin - you should just eat foods with Vit K in moderation. Also, any new over the counter or prescription drugs need to be shared with you doctor as some can effect the INR.

Torremolinos, Spain

#6 Sep 28, 2009
I read that too much cinnamon can speed the heart

Torremolinos, Spain

#7 Sep 28, 2009
is it true that cinnamon can speed the heart

Crown Point, IN

#8 Sep 28, 2009
I am not sure about that -I dont think I have ever heard one of my docs tell a patient that but maybe they didnt know :)

Middletown, IL

#10 Mar 17, 2012
Yikes..Don't get your medical advice from blogs..Cinnamon may contain coumarin and can increase your Bleeding time "INR"....Vitamin K is an antagonist and will decrease your INR... Coumadin is a coumarin derivative by the way.
Need A Light

Dorchester, Canada

#11 Mar 19, 2012
A pretty fair article on cinnamon can be found here the type used can make a difference also contains some side effects

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