which type of fiber supplement causes gas
Not all types of fiber cause gas. Fiber comes in two types, soluble and insoluble. Foods that contain soluble fiber tend to produce more gas than foods high in insoluble fiber. Some sugars as well as fiber can cause gas; foods that contain both soluble fiber and sugars that cause gas have extra gas-producing potential. The types of bacteria you have in your gut -- which varies from person to person -- can also affect how much gas you produce.