Mode of Action of Psyllium in Reducing Gas Production from Inulin and its Interaction with Colonic Microbiota: A 24-hour, Randomized, Placebo-Controlled Trial in Healthy Human Volunteers.

Microbiological differences between responders and nonresponders to psyllium Degradation products of PI (arabinose) were higher in nonresponders compared with responders, although this did not reach statistical significance ( Figure 3 B; 2.376 ± 0.4901 compared with 1.586 ± 0.2759 μg/L, respectively).

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