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 .
The soluble fiber NUTRIOSE induces a dose-dependent beneficial impact on satiety over time in humans.
Strong evidence supports the ability of dietary fibers to improve satiety . However , large variations in the physical and chemical characteristics of dietary fiber modulate the physiologic responses . We hypothesized that a nonviscous soluble dietary fiber may influence satiety . This r and omized , double-blind , placebo-controlled clinical study in 100 overweight healthy adults in China investigated the effect of different dosages of dietary supplementation with a dextrin , NUTRIOSE ( ROQUETTE frères , Lestrem , France ) , on short-term satiety over time . Subjects were r and omized by body mass index and energy intake and then assigned to receive either placebo or 8 , 14 , 18 , or 24 g/d of NUTRIOSE mixed with orange juice ( n = 20 volunteers per group ) . On days -2 , 0 , 2 , 5 , 7 , 14 , and 21 , short-term satiety was evaluated with a visual analog scale , and hunger feeling status was assessed with Likert scale .  NUTRIOSE exhibits a progressive and significant impact on short-term satiety , which is time and dosage correlated . Some statistical differences appear for the group 8 g/d from day 5 , and from day 0 for the groups 14 , 18 , and 24 g/d . The hunger feeling status decreases significantly from day 5 to the end of the evaluation for the group 24 g and from day 7 for the groups 14 and 18 g. By day 5 , the group 24 g showed significantly longer time to hunger between meals compared with placebo . These results suggest that dietary supplementation with a soluble fiber can decrease hunger feeling and increase short-term satiety over time when added to a beverage from 8 to 24 g/d with time- and dose-responses relationship
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 .