Canned BeansApproximate cost per gram of fiber: $0.06Beans offer one of the biggest returns on investment in regard to fiber. The fiber count of these legumes can climb up to almost 16 grams per one-cup serving depending on the variety. Beyond the cost, Malone is a chia seed advocate because of its versatile taste and texture and how well the ingredient regulates bowel movements. ApplesApproximate cost per gram of fiber: $0.20When it comes to fresh produce that’s rich in fiber and cheap to boot, apples can’t be beat, Linsenmeyer said. The post 7 inexpensive sources of fiber to add to your grocery list appeared first on Washington Post.