EFFECTS OF LIQUID PRELOADS WITH DIFFERENT FRUCTOSE FIBRE CONCENTRATIONS ON SUBSEQUENT FOOD-INTAKE AND RATINGS OF HUNGER IN WOMEN/

Preloads (250 ml) of 2% or 10% fructose containing 1% soluble fibre an d 1% insoluble fibre or 10% fructose with 3% soluble fibre and 1% inso luble were administered 60 min before lunch to 24 healthy women, who w ere slightly overweight and considerably weight concerned. The fibre c onsisted of guar gum, partly hydrolysed for the soluble form. The plac ebo consisted of a solution of sweeteners (cyclamate and saccharin). A fter the experiment with three preload-types and a placebo, a random s ubset of 15 subjects returned for an experiment with one preload-type and a placebo, given 30 or 60 min before lunch. Food intake during the subsequent lunch was only significantly different from after the plac ebo in this subset of 15 subjects after the 10% fructose/3% soluble an d 1% insoluble fibre preload after intervals of 30 or 60 min. However, energy intake of preload and meal was significantly higher than energ y intake of placebo and meal. At the 30-min delay, eating rate was sig nificantly lower after the preload than after the placebo; also, hunge r ratings were lower after intake of a preload and meal than after int ake of the placebo +meal, from immediately after lunch until 5 hours l ater. Energy intake over 24 h was not affected by administration of fr uctose/fibre or placebo 30 or 60 minutes before lunch in the 24 women.