Pros:
Dietary fiber contributes to increased satiety (or fullness) during meals, enhances, insulin sensitivity, delays carbohydrates absorption and because humans do not have enzyme to digest fiber (and consequently absorb the fiber), as the fiber goes through the gastrointestinal tract, soluble fiber may bind nutrients like glucose and exit the body with the glucose resulting in decreased absorption of the glucose.
Dietary fiber may reduce fatty liver, decrease percentage body fat. Viscous fiber may cause mild weight loss.
Cons:
May cause abdominal bloating and flatulence