Serving size: 1 medium
Approximate cost per serving (U.S.)*: 25 cents
Approximate fiber per serving: 3.1 grams
*Food prices vary widely; this is only an estimate based on recent U.S. averages.
They're portable, sweet and go great in cereal and oatmeal: Bananas are a fiber source you can eat any time of day, and a single one has more than 3 grams of dietary fiber.
While fruit is never cheap, bananas run on the lower-cost side, about a quarter per fruit. And since overripe bananas are perfect for turning into sweet, dessert-worthy banana bread, you'll seldom have to throw one out if you don't eat it at the peak of ripeness.
To up your morning fiber, cut a banana in two and slice half of it into your oatmeal. Now you're looking at up to 25 percent of your daily fiber for less than 50 cents.
And finally, the food that may just be the cheapest source of fiber on the market ...