Lactose malabsorption and intolerance in Italians. Clinical implications.
Digestive diseases and sciences(1986)
摘要
Lactose malabsorption was assessed by the hydrogen breath test in 40 Italian patients with irritable bowel syndrome and 42 controls without abdominal disturbances. Sixty-five percent of patients were "low milk consumers" (0-250 ml milk per day) compared with 38% of controls (P less than 0.02). Lactose loads of 25 and 50 g caused malabsorption in 82.5 and 87.5% patients and in 55 and 62% controls, respectively (patients vs controls P less than 0.02). Malabsorption was more frequent in the "low milk consumers" group (P less than 0.05). During a four-month lactose-free diet as the only treatment 7.5% of patients became symptom-free (and remained so for a further eight-month diet), 52.5% improved, and 40% showed no change.
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