There are three major components in the 40 gram Fiber diet, a weight loss program: Four slices of whole wheat bread, 24 pieces of grapes and 120 gm of corn.
If one is aiming for a healthy diet, aim for variety. Choose different colors of fruits and vegetables. Eat different fruits and vegetables daily and better yet choose fresh ones that is free from chemical pesticide residues. Be sure to wash them thoroughly with water before you cook or eat them.
Studies had shown that people who eat whole grain foods daily as part of low fat diet and healthy lifestyle are less likely to gain weight overtime.