Since some people are going to rely on bars anyway, we gave Better Bites to those with no more than two grams of saturated fat and at least three grams of fiber. The sat-fat limit means the bars wont threaten your blood vessels, and the fiber usually means the bars have some oats, nuts, fruit, or other real food. Within each category, bars are ranked from best to worst (least to most saturated fat, then most to least fiber, then least to most calories).