I was able to get a hold of my dietician about my vinegar question. Apparently balsamic has more glucose than fructose but I should limit it to 1-2 tsp servings. White distilled vinegar has no fructose and cider vinegar trace amounts of fructose. There are also times that HFCS is also added to vinegar apparently. Looks like I will have to start reading the labels. And limiting how much vinegar I’m taking in with the foods I eat. Unless the vinegar is upsetting my stomach for a completely different reason from the fructose intolerance.