The Impact of Glucomannan, Inulin, and Psyllium Supplementation (SolowaysTM) on Weight Loss in Adults with FTO, LEP, LEPR, and MC4R Polymorphisms: A Randomized, Double-Blind, Placebo-Controlled Trial

Author:

Pokushalov Evgeny12ORCID,Ponomarenko Andrey1ORCID,Garcia Claire2,Pak Inessa1,Shrainer Evgenya1ORCID,Seryakova Mariya1,Johnson Michael2,Miller Richard2

Affiliation:

1. Center for New Medical Technologies, Novosibirsk 630090, Russia

2. Scientific Research Laboratory, Triangel Scientific, San Francisco, CA 94101, USA

Abstract

This study aimed to determine the impact of a fiber supplement on body weight and composition in individuals with obesity with specific genetic polymorphisms. It involved 112 adults with obesity, each with at least one minor allele in the FTO, LEP, LEPR, or MC4R polymorphism. Participants were randomized to receive either a fiber supplement (glucomannan, inulin, and psyllium) or a placebo for 180 days. The experimental group showed significant reductions in body weight (treatment difference: −4.9%; 95% CI: −6.9% to −2.9%; p < 0.01) and BMI (treatment difference: −1.4 kg/m2; 95% CI: −1.7 to −1.2; p < 0.01) compared to placebo. Further significant decreases in fat mass (treatment difference: −13.0%; 95% CI: −14.4 to −11.7; p < 0.01) and visceral fat rating (treatment difference: −1.3; 95% CI: −1.6 to −1.0; p < 0.01) were noted. Homozygous minor allele carriers experienced greater decreases in body weight (treatment difference: −3.2%; 95% CI: −4.9% to −1.6%; p < 0.01) and BMI (treatment difference: −1.2 kg/m2; 95% CI: −2.0 to −0.4; p < 0.01) compared to heterozygous allele carriers. These carriers also had a more significant reduction in fat mass (treatment difference: −9.8%; 95% CI: −10.6 to −9.1; p < 0.01) and visceral fat rating (treatment difference: −0.9; 95% CI: −1.3 to −0.5; p < 0.01). A high incidence of gastrointestinal events was reported in the experimental group (74.6%), unlike the placebo group, which reported no side effects. Dietary supplementation with glucomannan, inulin, and psyllium effectively promotes weight loss and improves body composition in individuals with obesity, particularly those with specific genetic polymorphisms.

Funder

S.Lab

Publisher

MDPI AG

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