A composition for oral ingestion comprises protease, lipase, amylase, papain, bromelain, lactase and amyloglucosidase (gamma-amylase). Preferably the composition comprises 10-30% by weight protease; 10-30% by weight lipase; 10-30% by weight amylase; 10-40% by weight papain; 10-40% by weight bromelain; 5-10% by weight lactase; and 5-10% amyloglucosidase. Preferably the composition comprises 60mg protease; 50mg lipase; 60mg lipase; 80mg papain; 75mg bromelain; 25mg lactase; and 20mg amyloglucosidase. Preferably the composition is substantially free of vitamins, calcium, magnesium and potassium and compounds thereof and dietary minerals such that preferably the composition consists of protease, lipase, amylase, papain, bromelain, lactase and amyloglucosidase. Preferably the composition is useful in enhancing digestion or, in particular, treating the symptoms of irritable bowel syndrome, coeliac (celiac) disease, lactose intolerance or pancreatic insufficiency.