Fluid and fiber ?
Foods high in fat tend to constipate you.
Foods high in fiber
favor looser stools. Fruits vegetable, whole grains are excellent sources of fiber. Also, fiber only works if u are well hydrated. Drink plenty of non-caffinated, non-alcoholic fluids to keep stools soft. Fiber can also be added to a glass of water. If this does not work see a GI specialist, there may be another cause of your issu.