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Two studies may provide hope for patients with irritable bowel syndrome struggling to implement the traditional low-FODMAP diet. In the low-FODMAP diet, patients with IBS restrict their intake of certain carbohydrates (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols), before gradually reintroducing each to determine sensitivity. In the first study, participants started on the traditional low-FODMAP restriction diet, but then had different FODMAP foods reintroduced blindly. The researchers found that patients reacted to an average of two FODMAPs. The data also suggested that individual FODMAPs alone could cause symptoms—as opposed to all the FODMAPs at once. The most significant, finding however, was...