The present systematic review and meta-analysis summarized data on habitual intake of oligo-, di-, mono-saccharides and polyols from 71 studies (n = 138,653 subjects) using random-effects model. In the general population, overall habitual intake of total FODMAPs is 19.86 (95 % CI: 18.12, 21.6) g/d. No differences were observed on habitual intake of individual constituents of designated FODMAPs between healthy and those who are suffering with functional gastrointestinal disease and other GI disorders. Multiple meta-regression adjusted with macronutrient components showed that IBS-SSS score is positively correlated with lactose (R2 = 77.78 %, P = 0.006) and total FODMAPs (R2 = 78.48 %, P = 0.0052), but not other individual constituents of designated FODMAPs e.g. fructans, GOS, and total polyols. Macronutrient components such as fat (in 6 out of 6 models) and carbohydrate (in 5 out of 6 models) were positively associated with IBS-SSS score. Our...

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