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Fruit juice: An invitation to diabetes?

A study that was recently released by Tulane University has found a link between the consumption of fruit juices and the development of type 2 diabetes. Ironically, the study also showed that one of the best ways to prevent the development of the disease is to consume a diet that is rich in whole fruits and vegetables!

Over the past eighteen years, the Nurse's Health Study has been carefully tracking the diets of over 71,346 women. Of those participants, 4,529 developed type 2 diabetes during the course of the study. In their analysis of the factors leading to diabetes, researchers at Tulane University discovered that fruits and vegetables were among the most effective ways to prevent development of the disease.

According to the study, eating an additional three servings of fruit per day can reduce the risk of developing diabetes by up to 18%. Similarly, a single serving of green, leafy vegetables can reduce the risk by 9%. However, just one daily serving of fruit juice can increase the risk of developing diabetes by 18%. This is highly significant; as the study's analysts note, earlier suggestions that women can drink juice instead of eating fresh fruit may be dangerously incorrect. Similarly, substituting fruit juice for other beverages in an attempt to become more healthy may also seriously backfire.

While the study will need to be replicated, and research hasn't been done to see if the findings are applicable to men, I will definitely be reconsidering my orange juice consumption!

Filed Under: Health & Medical, Food News, Ingredients, Drink Recipes
Tags: diabetes, featured, fruit, Juice, Nurses Health Study, NursesHealthStudy, Tulane, Tulane University, TulaneUniversity, type 2, type 2 diabetes, Type2, Type2Diabetes, vegetables

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Reader comments (Page 1 of 1)

Sally

7-17-2008 @3:37PM Sally said... This really isn't news. Many medical professionals have been encouraging whole fruit over juice for a number of years. Whole fruit contains fiber which slows the absorption of the sugars in fruit. Fruit juice has little to no fiber to slow the absorption of the sugars. Forget the juice and eat an orange!
Reply

Julie

7-17-2008 @4:01PM Julie said... It is quite true, my friend is diabetic and her surger spikes high after consuming fruit juice but it does not spike as high when eating the whole fruit instead.
http://noshtalgia.blogspot.com/
Reply

Julie

7-17-2008 @4:02PM Julie said... oops....Sugar
Reply

Rachel

7-19-2008 @1:26PM Rachel said... Does this apply to unsweetened fruit juices as well?
Reply

Bruce Watson

7-18-2008 @11:41AM Bruce Watson said... Rachel-
Unsweetened juices often contain a huge amount of natural fruit sugar, or fructose, which causes exactly the sort of problem that this post discusses. Basically, in the absence of the fiber provided by whole fruit, fructose cause a major sugar spike.

I'm working on finding a good fructose index; when I do, I'll write it up for you. In the meantime, I'd watch out for things like apple juice, grape juice, orange juice, and other sweet juices.
Reply

Stacie

7-18-2008 @12:46PM Stacie said... Thanks for your post. There are so many benefits to eating fresh fruits, especially the fiber. However I will say (as a registered dietitian) that all things fit in moderation and juice does have a place in the diet - 100% juice contain the same antioxidants found in the whole fruit and are a good option when there isn't fresh fruit available. It's definitely a better choice than a soda or a "fruit drink." I like to mix white grape or apple juice with some sparkling water - it's a nice change from the gallons of water I drink each day!
Reply

Adam Fields

7-18-2008 @2:22PM Adam Fields said... I wonder if there's a difference in these results between juice (i.e.: something that came out of a squeezed piece of fruit) and "100% juice" (i.e.: something processed, concentrated, reformulated, and/or blended with other sweeter juices).

Almost without exception, the products that you can find on shelves are the latter. The nutritional profiles are not the same.

I posted about this a few months ago:

http://www.aquick.org/blog/2008/03/03/fed-up-with-food-labeling/
Reply

Stacie

7-18-2008 @5:42PM Stacie said... Adam, I read your post and just for clarification, "concentrated" does not mean it didn't come from real fruit. I does mean it's not "fresh" but concentrate is not altered in any way except that water is removed and it can be stored and is shelf-stable, as opposed to freshly squeezed juice. The FDA does have standards of identity and adulteration testing which looks for added sugars/sweeteners - if there are any, it does not qualify as "100% juice." Even still, if more than one concentrate is blended together to make sweeter tasting juice, what's the problem? For every negative study like this, there are numerous other studies touting the health benefits of cherry, apple, pomegranate and grape juice and those studies often use concentrate in those tests. Some fruits are just too acidic on their own to palatible, so they are blended with other juices.

Reply

Clare

7-22-2008 @2:49PM Clare said... The addition of HFCS in most fruit juices (especially since it is now considered by the FDA to be "natural") is not helping matters.

Getting it out of drinks on the market is an important consumer task! Join up:
http://www.thepoint.com/campaigns/dear-high-fructose-corn-syrup-please-get-out-of-us-colas-thanks-america
Reply

9 Comments / 1 Pages

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