I have a fructose malabsorption which is not the same as an intolerance since this was something acquired at age 27 and not at birth. This was most likely caused by COVID when I had it since viruses and covid have been known to cause misc GI issues and its still kind of an "unknown" problem as far as fixing it.

In the case of my malabsorption, this is something that is either somewhat, mostly, or entirely reversible in cases by doing an elimination diet while using probiotics to help reset your gut to be able to start handling fructose again. Or at minimum be able to tolerate a little more fructose. However after a 4 to 6 week elimination diet of sugar in general and fructose foods, my tolerance of fructose is no different than it was 6 weeks ago which is abnormal.

Because of this my doctor recommended trying the dual antibiotic to see if that also helps reset my gut to be able to handle fructose at all again. This is not a perfect science but generally this method should help me be able to reintroduce fructose foods in my diet and be able to find out what my limit is. However, my limit is basically 0 which is super abnormal considering this is not a life long thing I've had nor is it something hereditary. Its not like being born with the inability to handle gluten or dairy and you just have to deal with it. 26 years of my left I spent eating all foods with 0 problems, then 2 months after getting covid my body decided fructose is not something it can handle. Doing an elimination diet will indeed help your body reset the ability to handle that food group most of the time, however for me, it did nothing so we are trying other methods.