Excess fructose is bad for IBS individuals with fructose malabsorption. It is not a problem for individuals with IBS who are not fructose malabsorbers. A recent study showed that up to 50% of IBS-C and IBS-D individuals are suspected to have fructose malabsorption.
Sweet potatoes contain about equal amounts of glucose and fructose. They contain about 1/2 gram of fructose and glucose and about 1 gram of sucrose per 100 grams of sweet potato.
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS