RESULTS The present study indicated that the efficacy of various fiber supplements on losing weight is variable .
Several mechanisms related to physicochemical properties of fibers such as solubility , fermentability and viscosity rates can be involved in their anti-obesity effects .
Dextrin , Mannan ( gum Arabic ) and pectin-rich fiber ( lupin kernel ) with no dietary interventions indicated a reduction in body weight and energy intake , while from clinical point of view , their effects were not considerable .
Overall , findings indicated that the efficacy of fiber supplements on obesity management is dependent on their contents and physicochemical properties .
It seems that fiber supplements with no weight-loss interventions did not have considerable antiobesity effects .
BACKGROUND Previous trials have reported beneficial effects of isolated and complex fiber supplements in obesity treatment .
However , recommending fiber supplements in obese subjects remains controversial .
To the best of our knowledge , no systematic review has up date d the data on the effects of fiber supplements on obesity since 2010 and the need exists for a systematic review on this topic .
Accordingly , a systematic review was undertaken to summarize the efficacy of different types of fiber supplements as a complementary treatment for weight management .
Soluble fiber dextrin enhances the satiating power of beverages
This study compared the effects of four types of fiber on satiety and energy intakes at the next meal using a st and ard double-blinded preload study design . Study participants ( 14 men and 22 women ) each took part in 6 study sessions . Study preloads were a combination of a solid snack and a liquid beverage ( energy range 0.78 - 0.83 MJ ) containing four different types of fiber : soluble fiber dextrin ( 12 g ) , soluble corn fiber ( 11.8 g ) , polydextrose ( 11.8 g ) , and resistant starch ( 11.2 g ) . All four fibers were compared to two control conditions of equal volume : an isoenergetic , low-fiber preload and a lower-energy , low-fiber preload . All preloads were presented twice for a total of 0.35 - 1.65 MJ and 1 - 24 g fiber . Satiety ratings were collected for 20 min intervals for 220 min during the morning testing session . A test meal was served at 1200 h and plate waste measured . The five higher-energy preloads led to higher fullness and lower hunger ratings compared to the low-energy control but were not significantly different from each other . Relative to the isoenergetic control , only soluble fiber dextrin significantly suppressed energy intakes ( p=0.023 ) . Supplementing beverages with soluble fiber dextrin affects short term energy intake and may have implication s for weight control
RESULTS The present study indicated that the efficacy of various fiber supplements on losing weight is variable .
Several mechanisms related to physicochemical properties of fibers such as solubility , fermentability and viscosity rates can be involved in their anti-obesity effects .
Dextrin , Mannan ( gum Arabic ) and pectin-rich fiber ( lupin kernel ) with no dietary interventions indicated a reduction in body weight and energy intake , while from clinical point of view , their effects were not considerable .
Overall , findings indicated that the efficacy of fiber supplements on obesity management is dependent on their contents and physicochemical properties .
It seems that fiber supplements with no weight-loss interventions did not have considerable antiobesity effects .
BACKGROUND Previous trials have reported beneficial effects of isolated and complex fiber supplements in obesity treatment .
However , recommending fiber supplements in obese subjects remains controversial .
To the best of our knowledge , no systematic review has up date d the data on the effects of fiber supplements on obesity since 2010 and the need exists for a systematic review on this topic .
Accordingly , a systematic review was undertaken to summarize the efficacy of different types of fiber supplements as a complementary treatment for weight management .