Maria Stewart|Soma D Nikhanj|David H Timm|William Thomas|Joanne L. Slavin
Evaluation of the Effect of Four Fibers on Laxation, Gastrointestinal Tolerance and Serum Markers in Healthy Humans
University of Minnesota|University of Minnesota|University of Minnesota|University of Minnesota|University of Minnesota
average dietary fiber intake united states roughly half recommended amount new dietary fiber products introduced increase fiber intake critical evaluate physiological effects fibersthis study examined effect 4 fibers derived maize tapioca fecal chemistry gastrointestinal gi symptoms serum markers chronic diseasetwenty healthy subjects completed singleblind crossover study 12 gday fiber pullulan promitor resistant starch soluble fiber dextrin promitor soluble corn fiber placebo maltodextrin consumed 14 days followed 21day washout gi symptom surveys completed days 3 14 stools collected days 1114 diet recorded days 1214 fasting blood samples obtained day 15the 4 test fibers well tolerated mild moderate gi symptoms total shortchain fatty acid scfa concentrations differ among treatments fecal ph individual scfas affected treatments stool weight serum markers chronic disease change treatmentsincreasing fiber intake 12 gday well tolerated may positive impact colon health due fermentation