| To determine the effect of cereal fibre compared with glycemic carbohydrate on food intake, the effects of four treatments (wheatlets (W), fibre (F), wheatlets + glucose (WG) and fibre + glucose (FG)) were measured over 60 and 120 minutes in normal BMI, non-diabetic males. Weight, volume, fat and protein were the same for all treatments. In a third study, orocaecal transit time, blood glucose and xylose absorption were measured. Energy intakes 60 min after treatment were lower after F, WG and FG than W (p < 0.05). In the 120 min session energy intakes were lower after WG than W and F (p < 0.05). Blood glucose AUC was affected by treatment (WG = FG > W = F; p < 0.05). Transit time did not differ among treatments. Xylose absorption was affected by treatment at 1 h (F = WG = FG < W; p < 0.05) and 4h (FG = WG < W = F = FG; p < 0.05). It is concluded that fibre decreased food intake at 1 hour but not 2 hours. The effects of fibre on food intake may be explained by delayed glucose absorption. |
