“…Indeed, in this study, the IBS-C patients had a lower intake of vitamins B 1 , B 2 , B 6 , folate, B 12 , E, K, and potassium, which is in accordance with other studies. 31,32 In some IBS-C patients, intake of high dietary fiber may exacerbate the symptoms and can frequently cause abdominal pain, bloating, and distension. 33,34 The incomplete digested carbohydrate such as in vegetables (e.g., onions, asparagus, broccoli, cabbage, peas, and cauliflower) and fruits (e.g., prunes, plums, apple, and mango) may increase the intestinal luminal water content through the osmotic activity, which results in rapid gas production (e.g., hydrogen, methane, and carbon dioxide) and subsequent abdominal distention due to their fermentation by gut microbiota.…”