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Fruits for the Insulin Resistant Horse – Look at the Entire Diet!

FOR IMMEDIATE RELEASE -- JUNE 13, 2012 -- Day in and day out, your horse eats the same thing. Boring… yes. Unbalanced… definitely. You’d like to add some fresh fruits to his diet, especially this time of year with all the summer variety...

FOR IMMEDIATE RELEASE — JUNE 13, 2012 — Day in and day out, your horse eats the same thing. Boring… yes. Unbalanced… definitely. You’d like to add some fresh fruits to his diet, especially this time of year with all the summer variety available, but he’s already on the chubby side and you’re afraid of giving him too much sugar. Many, if not most, overweight horses are insulin resistant and it’s true, you do need to limit the sugar (and starch) content of the diet. But there still can be room for some tasty fresh fruit. The key is to evaluate how much sugar your horse is getting in his entire diet.

Sugar content of common fruits

Horses love bananas (one of their favorite flavors). They also like watermelon, berries, grapes, and of course, apples. Carrots, though not a fruit, also contain sugar. This chart gives you an idea of how much sugar is in each of these foods.

Don’t forget the peel!

One really great way to offer your horse something tasty and nutritious is to feed the peel instead of the whole fruit. Apple peels, banana peels, orange peels, watermelon (and other melon) rinds – all of these have less than 1 gram of sugar per cup.

Let’s put this in perspective with the rest of the diet

In an effort to reduce the sugar (and starch) content of your horse’s diet, you should strive to feed less than 12% non-structural carbohydrates (NSC). NSC includes not just sugar, but also starch and fructans. If you’ve had your hay or pasture analyzed, look at the ethanol soluble carbohydrate (ESC) value – that’s the simple sugar content. ESC values are typically about half the total NSC. Here are ESC and NSC percentages for a few forages and fibrous feeds.

As an example, let’s assume your grass hay has 11% NSC, and 6% ESC. Excellent! That’s a good hay to offer your horse free-choice. If your horse consumes 25 lbs per day of this hay, he/she will consume 1.5 lbs of sugar (25 X .06). Converting that to grams (multiply by 454), and you have 681 grams of sugar. If your horse also eats six strawberries per day, you’ll be providing an additional 6 grams of sugar. This brings the total sugar intake to 687 grams per day, or 6.05% of the diet. Not much of a difference.

But, if you are feeding hay with a high %NSC, plus additional feeds, making the entire diet high already high in sugar and starch, adding fruit will only make things that much worse.

The goal: Reducing sugar in the entire diet gives you room to provide a small amount of fresh fruit. This will not only be pleasing to your horse, but will offer additional nutrients that do not exist in the current diet.

* Values obtained from http://nutritiondata.self.com

** Values obtained from the University of Georgia: http://aesl.ces.uga.edu/Forms/NSCCircular.pdf

For permission to reprint this article, in part or in its entirety, arrange for a private consultation or schedule Dr. Getty as a speaker, please contact her directly at gettyequinenutrition@gmail.com.

Dr. Juliet Getty has taught and consulted on equine nutrition for more than 20 years. The Getty Equine Nutrition website (www.GettyEquineNutrition.com) offers a library of articles, previously recorded teleseminars, and a nutrition forum. Subscribe on the website to her free and informative monthly e-newsletter, “Forage for Thought.” Dr. Getty serves as a distinguished advisor to the Equine Sciences Academy and her articles on equine nutrition are internationally published. Her comprehensive resource, Feed Your Horse Like a Horse, is available in hardback or CD (PDF file) through the Getty Equine Nutrition website; the book is also sold at Amazon.com. Dr. Getty is available for individual consultations. Contact Dr. Getty directly at gettyequinenutrition@gmail.com or (740) 663-2333 (Eastern time zone).

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