That explanation doesn't really make sense, and a different one[1] appears in the paper itself. People who lack the enzymes to digest a sugar experience gastroi

That explanation doesn't really make sense, and a different one[1] appears in the paper itself. People who lack the enzymes to digest a sugar experience gastrointestinal distress because bacteria in the lower GI tract eat the sugar that wouldn't otherwise make it to them, producing gas in the process. [1]>This discrepancy between adults and children, may be due to the maturation and growth of the small intestine, increasing the capacity to absorb luminal fluid with increasing age, and to dietary adaptation caused by symptoms in childhood.