Will wheat and rice cereal cause constipation in an adult?

Fiber?: White rice and farina(the white bread of hot cereals) have no fiber to speak of. Brown rice has a bit more. Whole wheat cereal, e.g. Wheaten a, whole oats, e.g. Oatmeal, oat bran have more fiber. Can't have a decent stool without adequate fiber. In general, aim for 25-35gm/day. Lots of good sources of fiber, r.G. Beans, fruit/veg, whole grains. Lots of good info online.