 Dietary fiber intake is protective against overweight and obesity; however, a significant fiber gap exists between consumption and recommended intake values. Soluble fiber beneficially impacts metabolism, and supplementation may be a feasible approach to improve body composition and glycemia in overweight and obese individuals. The investigators will evaluate results of randomized controlled trials RCTs of soluble fiber supplementation among overweight and obese adults for outcomes related to weight management e.g. body mass index BMI, body weight, body fat percentage, waist circumference and glucose and insulin homeostasis e.g. fasting glucose, homeostasis model assessment of insulin resistance HOMA-IR, fasting insulin through systematic review and meta-analysis. 