Fiber is very important to maintain healthy digestion and overall body. But that does notmean eating too much fiber may be, because most of the fiber can make people fartoften sudden and diarrhea. Stomach gas often is the result of a digestible carbohydrate, such as sugar, starch andfiber. Everyone reacts to foods differently and some people may be more prone to experience stomach bloating when certain foods.

MedlinePlus states that the average adult is recommended to eat fiber between 20 and 35 grams per day. And if excessive, then the sudden fart and diarrhea are the two mostcommon symptoms, as reported by LIVESTRONG.

Flatulence can be formed because of too much air or the interaction of bacteria in the gut. A small amount of air entering the digestive system when people eat, but if youswallow too much air can cause abdominal pain.Most types of gas expelled through belching. However, the bacteria in the colonbecomes accustomed to the amount of fiber you eat, which will produce excessiveamounts of gas.

Eating too much fiber can also make people diarrhea. Fiber helps make bowelmovements become regular, but can be overdone the intestine moves excessively,which could ultimately create a liquid stool. If diarrhea lasts more than 3 days, consult a doctor immediately.

Insoluble fiber is fiber that most causes of gas in the body, because it absorbs water inthe digestive system. While insoluble fiber can not absorb water during digestion so it helps regulate bowel movements. MayoClinic identified several high-fiber foods are most common, such as raspberries,apples, bananas, figs, wheat, pasta, oatmeal, popcorn, peas, lima beans, almonds,pecans, broccoli and sweet corn.