IBS is a global disease, patients often because of long-term symptoms of recurrent, not timely diagnosis and treatment effect is not ideal and frequent treatment, seriously affect the quality of life, and cause the corresponding economic and social burden.At present，a number of studies suggest that fermentable oligosaccharides, disaccharides and monosaccharides and polyols (FODMAPs) can induce IBS symptoms.Data from large randomized controlled trials are limited, leaving clinicians with the challenge of providing patients with reliable guidance based on minimal evidence.~This study will compare the effect of low FODMAPs diet and usual diet instruction on Intestinal flora, intestinal short chain fatty acids and quality of life by two groups.The results will answer the effect and long-term safety of Low FODMAPs diet.
IBS is a global disease, patients often because of long-term symptoms of recurrent, not timely diagnosis and treatment effect is not ideal and frequent treatment, seriously affect the quality of life, and cause the corresponding economic and social burden.At present，a number of studies suggest that fermentable oligosaccharides, disaccharides and monosaccharides and polyols (FODMAPs) can induce IBS symptoms.Data from large randomized controlled trials are limited, leaving clinicians with the challenge of providing patients with reliable guidance based on minimal evidence.