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 .
Psyllium Supplementation in Adolescents Improves Fat Distribution & Lipid Profile: A Randomized, Participant-Blinded, Placebo-Controlled, Crossover Trial
Aims We aim ed to assess the effects of psyllium supplementation on insulin sensitivity and other parameters of the metabolic syndrome in an at risk adolescent population . Methods This study encompassed a participant-blinded , r and omized , placebo-controlled , crossover trial . Subjects were 47 healthy adolescent males aged 15–16 years , recruited from secondary schools in lower socio-economic areas with high rates of obesity . Participants received 6 g/day of psyllium or placebo for 6 weeks , with a two-week washout before crossing over . Fasting lipid profiles , ambulatory blood pressure , auxological data , body composition , activity levels , and three-day food records were collected at baseline and after each 6-week intervention . Insulin sensitivity was measured by the Matsuda method using glucose and insulin values from an oral glucose tolerance test . Results 45 subjects completed the study , and compliance was very high : 87 % of participants took > 80 % of prescribed capsules . At baseline , 44 % of subjects were overweight or obese . 28 % had decreased insulin sensitivity , but none had impaired glucose tolerance . Fibre supplementation led to a 4 % reduction in and roid fat to gynoid fat ratio ( p = 0.019 ) , as well as a 0.12 mmol/l ( 6 % ) reduction in LDL cholesterol ( p = 0.042 ) . No associated adverse events were recorded . Conclusions Dietary supplementation with 6 g/day of psyllium over 6 weeks improves fat distribution and lipid profile ( parameters of the metabolic syndrome ) in an at risk population of adolescent males . Trial Registration Australian New Zeal and Clinical Trials Registry
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 .