How does diet affect vowel movement?

Constipation? diet low in fiber and fluids can lead to constipation. A diet high in fiber and fluids can help relieve constipation. Insoluble fiber such as found on the skin of fruits and vegetables, is the kind of fiber you want to relieve constipation and have a normal bowel. If you have diarrhea, soluble fiber such as in apple sauce and oatmeal will help bind up some of the water and make a more solid stool.
Very much. I am assuming "bowel" movement (sp). With this in mind adults who eat healthy, meaning 6-10 servings of fruits and vegetables a day with high fiber, will have a healthier colon and therefore more regularity then those who eat more processed, low fiber diets. Eating meat or too much meat can adversely affect bowel movements because of the fat and lack of general fiber.
Texture. The texture of a bowel movement is influenced by diet and the duration of stool in the colon. The colon extracts water from the mass and the slower material moves thru, the drier and thicker it will become. Material like bananas, pasta, bread, potatoes, and apples will slow the stool. Fruit, vegetables, milk and fruit juices will loosen the stool by speeding up transit.