As the soluble fiber of oats is digested, it forms a gel, which causes the viscosity of the contents of the stomach and small intestine to be increased. The gel delays stomach emptying making you feel full longer which helps with weight loss. New research suggests that children between ages 2-18 years old who have a constant intake of oatmeal lowered their risk of obesity. The research found that the children who ate oatmeal were 50% less likely to become overweight, when compared to those children that did not eat it.