Vitamin K and Insulin Resistance: Old News?

John Crowley
By John Crowley Latest Reply 2011-03-28 06:56:46 -0500
Started 2011-03-23 10:54:22 -0500

OK, so maybe I'm really late in discovering this, but back in 2008 Tufts University published a study showing that Vitamin K is critical in reducing insulin resistance.

Is this common knowledge out there? I'm a little bit surprised that it hasn't come up more as a topic here.

Here's what the researchers wrote about their study:

"Vitamin K slowed the development of insulin resistance … In addition to improved insulin resistance, the supplemented men had lower blood insulin levels compared to the unsupplemented men at the conclusion of the study."

The authors also pointed out:

"Although vitamin K supplements were used for the study, the authors say the study dosage is attainable by consuming a healthy diet. Foods considered good sources of vitamin K include brussels sprouts, broccoli, and dark, leafy greens, such as spinach and collards."

Here's the link to the original announcement about the study if you'd like to read more:

Has anyone been focused on getting more vitamin K in their diet? Have you seen any good results?

20 replies

CatLady34 2011-03-26 20:19:20 -0500 Report

If you are on Warfrin or Coumidin you need to watch your vitamin K consumption because it thins the blood even more..

Jeanette Terry
Jeanette Terry 2011-03-25 11:10:01 -0500 Report

what kinds of foods have vitamin K in them?

Graylin Bee
Graylin Bee 2011-03-25 11:29:38 -0500 Report

A few are the green leafy vegetables and sesame seeds.
Here's a link to a good list of Vitamin K rich foods. Just look at the foods to avoid if you are on blood thinners. Vitamin K helps thin the blood so is a problem in that case. But that is the best list I have found recently.

GabbyPA 2011-03-28 06:55:15 -0500 Report

This is a nice site because it deals with other illnesses as well. How to eat for your disease. Some good info there.

hoosierphilly 2011-03-24 14:09:42 -0500 Report

Some reports say diabetics are short in the B vitamins, some say chromium picolate, we use lavasa for extra Omega 3, and go for all antioxidant support. I believe in healthy food first and supplements only add insurance. Vit D is insufficient by most of us despite any comments to the contrary…nutritional researches confirm this..and then some say floirde has eliminated enough iodine in our food chain creating thyroid problems. Then med students still don't get much nutrition info in med school or anywhere else unless they have the time and special interest in that. If you eat healthy, exercise, loose weight (hard as a diabetic), get your nutrients you are likely to reverse, slow down diabetes and minimize the drug needs. Some of the better endos do not support all of these thoughts.

Check out the research grants through to see studies. That is time consuming

Hopieland 2011-03-24 01:41:24 -0500 Report

Thanks John. A newbie to eating right I would have never thought of V-K. It's interesting this type of info is not made common knowledge…but then the "experts" may not be as helpful as communicating via a community such as this. Thanks for sharing.

Harlen 2011-03-23 20:46:42 -0500 Report

Thanks John
I have tried it and I didnt see much good from it .
But as you know we are all difrent and it may work better for others.
Best wishes

Kirla 2011-03-23 20:15:10 -0500 Report

I read about this last year. I find when my blood sugar starts to raise a little, I drink more water and eat more broccoli. I posted about this on my blog last year. I believe in eating low carb green vegetables, been trying for over a year now to get the word out. I find lots of people read what I write but very few take me serious. It has worked for me. My A1C went from 14.1 to 5.9 in only a few months. I found diabetes real easy to control. I believe it works for me and it may work for a lot of other people too.

GabbyPA 2011-03-23 20:03:38 -0500 Report

I had no idea about this. I know that eating greens are very good for anyone, and so I may have to look into this more. Maybe that is why things like wheatgrass shakes bring levels down and cucumbers do the same. It is such a shame that we don't get what we NEED in our foods. I have to make better choices.

Graylin Bee
Graylin Bee 2011-03-23 19:48:46 -0500 Report

This is new news to me.
I better continue enjoying my broccoli and getting rid of some more excess weight then.
Since Vitmin D levels can be tested in us can Vitamin K levels also be known?
Yet another few questions for my next Dr visit.

sarah f
sarah f 2011-03-23 15:39:23 -0500 Report

I dont know about insulin resistance and the link with vitamin K but I do know we need vitamin K2 to prevent calcification(hardening) of the arteries and bone loss.Vitamin K2 puts the caicium where it is needed out of the arteries and in the bones.Now guess why we dont get enough vitamin K2.Way back when our experts said dairy products ran our cholestrol levels up and hi fat, they said no more and now look what we have.Not many dr know about this yet but there is much research that has been posted on line. small

re1ndeer 2011-03-23 13:30:25 -0500 Report

Those of us diabetics, who have heart or other problems, That are on blood thinners, must avoid vitamin K foods. Unless, they were previously in our diet.

MewElla 2011-03-23 11:53:00 -0500 Report

My Dr was just telling how important it is for diabetics to have vitamin K in their diets, which I already eat lots of greens,broccoli…Just need to step it up a tad. Good article..

CaliKo 2011-03-23 11:29:10 -0500 Report

Thanks for the article, I hadn't heard that. I do eat lots of broccoli and spinach, though, and just made my first dish with collard greens last weekend. I was feeling quite Southern with that dish! Even my husband (from the north) who turned up his nose when I said collard greens, liked the dish with some pepper sauce added.

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