Few safe and effective dietary supplements are available to promote weight loss. We evaluated the safety and efficacy of glucomannan, a water-soluble fiber supplement, for achieving weight loss in overweight and moderately obese individuals consuming self-selected diets. Participants were randomly assigned to take 1. The primary efficacy outcome was change in body weight after 8 weeks. The two groups did not differ with respect to baseline characteristics and compliance with the study supplement. Overweight and obesity are exceedingly difficult to reverse. Despite the widespread use of conventional management strategies—low-calorie diets, physical activity, behavioral interventions, and pharmacological agents—the prevalence of overweight and obesity continues to rise in the US. Overweight and obesity increase the risk for comorbidities such as diabetes and atherosclerosis and are associated with reduced quality of life and life expectancy [ 2, 3 ]. Clearly, alternative approaches are needed. One potentially promising alternative approach is glucomannan, a dietary supplement widely promoted and used for its weight loss properties.
Find out all about glucomannan, including what it does, the benefits to taking it and how much you might need. Glucomannan, or konjac as it is sometimes known, is a natural, water-soluble fibre derived from the roots of a south-east Asian plant called the elephant yam. Glucomannan is often used as a bulking agent in foods, appearing as E on food labels. Like all soluble fibres, glucomannan is highly absorbent, binding to water to form a gel. As a viscous dietary fibre, glucomannan is the favourite food for certain friendly bacteria in our guts. A laboratory study by the University of Reading found that it helped encourage healthy levels of gut bacteria populations, for example bifidobacterium, but more research on humans is still needed. And like all fibres, glucomannan can reduce constipation by increasing bulk, and speeding up food transit time through the colon.
Question not how to diet with glucomannan something
The tubers, commonly referred to as elephant yams, are used in Japanese kitchens to make yam cakes konnyaku and noodles shirataki. Glucomannan is a substance extracted from the root of the konjac plant Amorphophallus konjac native to Asia. Contrary to popular belief, glucomannan has less impact on blood sugar levels than expected. Overweight and obesity are exceedingly difficult to reverse. The lack of body composition changes may be due to the absence of an exercise intervention as part of the study design. Research Quarterly for Exercise and Sport. Connect with us. Other studies have shown that taking glucomannan supplements before a meal may provide a transient drop in blood glucose but had no demonstrable effect on insulin or HbA1c levels.