The Best High-Fiber Foods, Ranked by What They Deliver

If you want the biggest return on your effort, it helps to know which foods genuinely deliver the most fiber. A short list of humble, affordable ingredients does most of the work in any high-fiber diet. Here are the standouts, grouped by how you actually eat them.

The legumes: most fiber per serving

For real, meal-sized amounts of fiber, nothing beats legumes. A single cup of cooked navy beans offers around 19 grams, split peas about 16, and lentils close to 16. Pinto beans, black beans, and chickpeas are all in the same league. If you change one thing about your diet, eat more beans.

The seeds: most fiber per weight

Gram for gram, seeds are unmatched. Chia seeds are roughly a third fiber by weight, and flaxseed is close behind. You do not eat them by the cup, but a spoonful stirred into oats or yogurt adds several easy grams.

The whole grains

Whole grains keep the fiber that refined versions strip away. Oats bring cholesterol-friendly beta-glucan, while barley, bulgur, and even air-popped popcorn, a whole grain in disguise, all contribute well.

The fruits and vegetables

Some produce punches above its weight. Raspberries and blackberries lead the fruit, with pears and guava close behind, while artichokes, Brussels sprouts, and avocado top the vegetables.

Putting it together

You do not need all of these at once. A day built on beans at one meal, oats and chia at breakfast, and fruit and vegetables with their skins will clear a healthy target easily. To see your personal number, try our daily fiber goal calculator, and use the fiber intake estimator to check where you stand now. The full food database lists the fiber in dozens more foods if you want to explore.