Irritable Bowel Syndrome Message Boards | Re: fructose malabsorption-questions for Syl

Fructose intolerance is a different disease than fructose malabsorption. The proper name is hereditary fructose intolerance. It is an inherited disease resulting in deficiencies in the liver enzymes that convert fructose into energy for the body after it leaves the GI tract and enters the bloodstream .

Fructose malabsorption is a change in the body's ability to move fructose from the GI tract into the blood stream. Many things can bring about this change including GI infections and possibly the continuous consumption high fructose foods.

My tolerance for high fructose foods was great until the spring of 1980. While living in Silicon Valley I got a serious GI infection after I trying a high IF vegetarian diet. My IBS changed from being tolerable to putting me in bed for days and weeks at time.

It took me years to figure out that I had to take complete control of my diet by eliminating the common triggers, managing my SF and IF, removing lactose, fructose and sorbitol containing foods from my diet.

Interestingly I found that once I got the fructose problem sorted I could significantly increase my daily consumption of a variety of other things that I had taken out of my diet (e.g. oils/fat, nuts and a bit more IF). It took a couple of years before I could eat a few strawberries and raspberries and a small amount of citrus fruit. I still experience problems if I eat too much or too frequently. I believe the reason is that there is a significant amount of IF in the berry seeds and citrus pulp. The reason I believe this is that I can eat homemade strawberry and raspberry jelly

I love summer fruit salad too. I just have to be careful of what I put in it now. However, I really love the freedom from the constant pain, bloating, gas and D/C.

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STABLE: ♂, IBS-D 50+ years - Science of IBS

The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
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The Role of Food & Dietary Intervention in IBS

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