Effect of Viscous Soluble Fibres on Body Weight

Launched by UNITY HEALTH TORONTO · Aug 17, 2017

Keywords

ClinConnect Summary

Background: Obesity is a global pandemic and is an independent risk factor for chronic disease. Dietary intervention is an essential component of obesity management. Observational studies show an inverse relationship between dietary fibres and body weight. Therefore, supplements of dietary fibres have the potential to facilitate weight reduction, possibly on the basis of the viscous properties of the fibre. Viscosity is the ability of gel forming that holds water and increase satiety and decreases the amount of intake food. This ability makes dietary fibre supplements considered as appetite...

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Eligibility criteria

• Inclusion Criteria:
• • 1. Must be a randomized controlled clinical trial with either a parallel or cross-over design
• • 2. Must have a treatment period of at least 4 week.
• • 3. Healthy children and adults, overweight and obese individuals or individuals with diabetes were all acceptable
• • 4. Must have one of the selected viscous fibres, (agar, alginate, β-glucan, guar gum, pectin, polyglycoplex(PGX), Psyllium, Xanthan), as a supplemented treatment.
• • 5. Only β-glucan sources from barley or oat were accepted The amount of barley product or barley β-glucan must be reported or measured, or must be computable. β-glucan was considered to be 4.75% in barley, and 3-5% in oat.
• • 6. Must be appropriately controlled.
• • 7. Must measure one of outcomes: body weight, BMI, waist circumference, or Body fat percentage.
• • 8. These Anthropometry measures can be either primary or secondary outcomes.
• • 9. Enough information must be provided to calculate the magnitude of effect, i.e. end of treatment measures and/or change from baseline measures
• • 10. Ad lipitum diet only.
• Exclusion Criteria:
• • 1. If the soluble fibre was not one of the selected viscous fibre or a combination.
• • 2. supplement where these fibers could not be isolated each one alone.
• • 3. If the study was insufficiently controlled, i.e. the control was another soluble fibre.
• • 4. If the outcome measures did not include body weight, BMI, waist circumference, or Body fat percentage.
• • 5. If the intervention was a diet with no supplemented fibre.
• • 6. If the study provided insufficient information to calculate a magnitude of effect
• • 7. If the study protocol maintains baseline weight.
• • 8. Secondary information such as reviews, editorials, commentaries, were excluded
• • 9. If the diet is hypo-caloric, energy restricted diet, or metabolically controlled diet.