Evidence supporting the use of: Inulin
For the health condition: Weight Loss

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Inulin is a type of soluble dietary fiber found naturally in many plants, such as chicory root, onions, and garlic. Its use for weight loss is primarily supported by scientific evidence rather than tradition. In recent years, several clinical studies have examined inulin's effects on body weight and related metabolic parameters. The proposed mechanisms include increased satiety (fullness), reduced appetite, and modulation of gut microbiota, which may influence energy metabolism and fat storage.

Randomized controlled trials (RCTs) have found modest reductions in body weight, body fat, and waist circumference in overweight or obese individuals supplementing with inulin compared to controls. For example, a 2015 trial in Obesity showed that overweight adults taking 21g/day of inulin lost more weight over 12 weeks than those taking maltodextrin. Other studies suggest inulin may help reduce caloric intake by promoting the secretion of gut hormones such as GLP-1 and PYY, which regulate hunger.

However, the overall effect sizes are small, and some studies report no significant benefit. Systematic reviews and meta-analyses generally conclude that while inulin may have a minor positive impact on weight loss, the evidence is not strong enough to recommend it as a standalone weight loss aid. More research is needed to determine optimal dosing, duration, and populations that might benefit most. In conclusion, inulin's use for weight loss is scientifically explored, but the evidence supporting its effectiveness remains moderate at best.

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