Anyone Have A Fructose Intolerance, Too?!

[still.joyful]

I was curious to see if anyone here also had a fructose intolerance?

Also, how did you go about getting tested for it?

[ElseB]

I'm starting to think I have a fructose intolerance, likely from eating too many apples. I'm an asymptomatic celiac, but lately I've been having GI symptoms, and I've ruled out gluten and lactose as the culprits, through an elimination diet. Fruit is the only likely thing left. I recently spent 4 months backpacking around Australia, and apples were an easy food for me to carry...and I used to eat 2 or 3 a day. Result? I think I gave myself a fructose intolerance. As for testing, I have no idea. My guess is it would have to be an elimination diet. I'm seeing the doctor next week, so I'll ask!

[DinaB]

I don't know if there is a test for it. I've asked both GI and Allergist and both didn't know of any. I too have severe bloating/flatulance and stomach issues upon digesting fruit. I didn't have it for three days, then ate some grapes yesterday. I was in pain all day. The list of foods I can eat is diminishing fast.

[mftnchn]

It could be the fruit but pure fructose in fruit is easier to digest because it is a monosaccharide. Are you eating sugars and complex carbs?

Celiacs can have trouble digesting carbs due to lack of the digestive enzymes made in the villi. If you aren't able to break them down, they will show up in a stool test as elevated sugar. So you can test that.

I'm not sure how to test just fructose.

Candida and intestinal flora imbalance could cause symptoms with fruit. This is also common with celiac.

[ive]

It is called fructose malabsorption or Dietary Fructose Intolerance (there is another type Hereditary Fructose Intolerance which is genetic). Wikipedia has a nice article about it: Open Original Shared Link

It is diagnosed with a hydrogen breath test, very similar to the lactose intolerance testing. I am surprised the doctor doesn't know about this.

If you want to go one step further and eliminate foods that are high in fructans as well, you can read this article here: Open Original Shared Link

Hope that helps.