Optimal Testing for Diagnosis of Fructose Intolerance: Over-dosage Leads to False Positive Intolerance Test

Adding glucose to food and solutions to enhance fructose absorption is not effective in preventing fructose‐induced functional gastrointestinal symptoms: randomised controlled trials in patients with fructose malabsorption

“…The patients were identified as fructose malabsorbers after routine clinical testing with 35 g of fructose. Malabsorption of fructose is dose‐dependent ; for example, in 20 healthy subjects, none malabsorbed a dose of 15 g #bib10% malabsorbed 25 g and 80% malabsorbed 50 g , and most healthy subjects can absorb up to 25 g of fructose . Thus, it was not surprising then that breath hydrogen responses to 25 g of fructose were relatively attenuated.…”