Are there people who are sugar intolerant?!


Question: Since birth, I haven't been able to eat sweets. If I do eat them, I become nauseated, weak, and hypoglycemic. I also can't eat fruits, lots of vegetables, or sweeteners. I can taste the smallest amount of sugar in a food. The weird thing is, I love pixie stix, gobstoppers, and sweettarts. My brother is exactly like me, so I know I'm not the only person out there. Most people just think we're crazy. What is this?


Answers: Since birth, I haven't been able to eat sweets. If I do eat them, I become nauseated, weak, and hypoglycemic. I also can't eat fruits, lots of vegetables, or sweeteners. I can taste the smallest amount of sugar in a food. The weird thing is, I love pixie stix, gobstoppers, and sweettarts. My brother is exactly like me, so I know I'm not the only person out there. Most people just think we're crazy. What is this?

There is a condition called Hereditary Fructose Intolerance, or HFI. This is different from DFI, which is more common. People with HFI must eliminate all but the smallest amounts of fructose from their diet. Fructose is in table sugar, and is also found naturally in many foods.
There is a web-based support group for HFI at
http://hfiinfo.proboards42.com/index.cgi

well, i dont know...maybe u have something going on in your family thats passing down to u.

Diabetes... Check your blood sugar.

If you have it since birth, it is called Infantile Diabetes.

It does indeed sound like you may have Hereditary Fructose Intolerance, or HFI. People with this condition do not produce the enzyme (aldolase B) that converts fructose to glucose, so consumption of fructose causes numerous problems with the digestive system, and particularly the liver. Symptoms are similar to what you describe - nausea (at times vomiting), hypoglycemia, low energy, and digestive problems that may be considered IBS (irritable bowel syndrome). The only "cure" is to stay on a diet that eliminates fructose, sucrose (which contains fructose) and sorbitol (a comment sweetener).

This condition is typically diagnosed through DNA testing, so I recommend you visit with a geneticist. Most of the gene mutations that cause HFI have been identified, but it is important to know that this DNA testing is not 100% accurate. The only sure way to confirm a diagnosis is to perform a liver biopsy and see if the aldolase B enzyme is missing. However, this invasive procedure should be a last resort if the DNA testing comes up inconclusive.

I also recommend this website as a resource:
http://www.bu.edu/aldolase/HFI/index.htm...





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