In this article
- How we chose these foods
- High fiber foods for weight loss, compared
- Fruit that eats like dessert
- Vegetables that fill the plate
- Beans and lentils that pull double duty
- Whole grains and small add ons
- Fiber foods that can work against you
- What a high fiber diet did in a real weight loss trial
- Fiber rich meals for a weight loss day
- How to pick your first swap
- Questions about fiber and weight loss
- Sources
It’s 3 p.m., you’re hungry, and a small order of fries would hit about 250 calories. Mayo Clinic points out that the same calories could buy you 10 cups of spinach, 1.5 cups of strawberries and a small apple.
That swap shows how high fiber foods for weight loss work. They don’t burn fat or cancel calories, they simply let you eat a satisfying amount of food for less energy.
Below are 14 picks chosen for that trade, with the numbers to compare them and a sample day that reaches 30 grams of fiber before dinner.
How we chose these foods
Foods on this list were picked with three tests in mind. Each one uses standard portions from the Dietary Guidelines food source list, so you can compare like with like.
- About 4 grams of fiber or more per normal serving, or roughly 15% of the 28 gram Daily Value.
- Low energy density. Mayo Clinic defines energy density as the calories in a given amount of food, and low density foods give you more volume for fewer calories.
- Easy to find. Everything here is sold fresh, frozen, canned or dried in an ordinary supermarket.
The extra column worth watching is fiber per 100 calories. It shows how much fiber you get for each slice of your calorie budget.
High fiber foods for weight loss, compared
| Food | Serving | Fiber | Calories | Fiber per 100 kcal |
|---|---|---|---|---|
| Turnip greens, cooked | 1 cup | 5.0 g | 29 | 17.2 g |
| Cauliflower, cooked | 1 cup | 4.9 g | 34 | 14.4 g |
| Jicama, raw | 1 cup | 5.9 g | 46 | 12.8 g |
| Raspberries | 1 cup | 8.0 g | 64 | 12.5 g |
| Blackberries | 1 cup | 7.6 g | 62 | 12.3 g |
| Artichoke, cooked | 1 cup | 9.6 g | 89 | 10.8 g |
| Brussels sprouts, cooked | 1 cup | 6.4 g | 65 | 9.8 g |
| Broccoli, cooked | 1 cup | 5.2 g | 54 | 9.6 g |
| Split peas, cooked | 1/2 cup | 8.2 g | 116 | 7.1 g |
| Chia seeds | 1 tablespoon | 4.1 g | 58 | 7.1 g |
| Lentils, cooked | 1/2 cup | 7.8 g | 115 | 6.8 g |
| Black beans, cooked | 1/2 cup | 7.5 g | 114 | 6.6 g |
| Oat bran | 1/2 cup | 2.9 g | 44 | 6.6 g |
| Pear | 1 medium | 5.5 g | 103 | 5.3 g |
Oat bran sits just under the 4 gram bar but earns its place on calories alone. At 44 calories per half cup, it is one of the lightest ways to start a breakfast with fiber.
Fruit that eats like dessert
Raspberries and blackberries are the standouts, with close to 8 grams of fiber in a cup for barely over 60 calories. That’s more than a quarter of the Daily Value in a bowl you can eat with a spoon.
A medium pear gives 5.5 grams for 103 calories and travels well in a bag. It is a sturdier choice than berries for a snack you plan to eat hours later.
Mayo Clinic suggests whole fresh, frozen or canned fruit without syrup. Frozen berries count, so you can keep a bag on hand year round.
Vegetables that fill the plate
Mayo Clinic notes that most vegetables are very low in calories and high in volume. Cooked turnip greens deliver 5.0 grams of fiber for just 29 calories a cup, and cauliflower gives 4.9 grams for 34.
Artichokes carry the most fiber per serving of any vegetable here at 9.6 grams a cup. Brussels sprouts (6.4 grams) and broccoli (5.2 grams) round out the group for under 70 calories each.
Other vegetables Mayo Clinic names for volume include salad greens, asparagus, carrots, tomatoes and zucchini. They carry less fiber per cup than the picks above, but they are useful for bulking up any meal.
Raw jicama is the crunchy option. A cup of sticks has 5.9 grams of fiber for 46 calories, which makes it a strong stand in for chips with salsa.
Mayo Clinic’s practical advice is to shrink the meat on your plate and grow the vegetable serving. Swapping a cheese sauce on pasta for sauteed vegetables is another of its suggestions.
Beans and lentils that pull double duty
Beans, peas and lentils are where fiber meets protein. Mayo Clinic lists them as high in protein and fiber and low in fat, which makes them lower energy density foods.
Half a cup of cooked split peas has 8.2 grams of fiber, lentils 7.8 grams and black beans 7.5 grams, all for about 115 calories. That pairing makes them an easy base for a lunch or dinner with staying power.
They have more calories per serving than vegetables, so treat the half cup as your unit. Add them to meals that already include vegetables rather than eating a large bowl on their own.
Whole grains and small add ons
Mayo Clinic calls whole grains the best grain choice because they keep more fiber and nutrients than refined grains. It also warns that many carbohydrates are energy dense, so portions matter.
Its examples include whole wheat bread and pasta, oatmeal, brown rice and whole grain cereal. Measuring these for a week or two is a quick way to learn what a real portion looks like on your plate.
Air popped popcorn is the most forgiving whole grain snack, at about 30 calories per cup according to Mayo Clinic. Oat bran, as noted above, is another light way in.
Chia seeds add 4.1 grams of fiber per tablespoon for 58 calories. Stir one into yogurt or oatmeal and you have raised a meal’s fiber without changing how much you eat.
Wondering which fiber products and pantry staples are worth buying? Our comparison charts break down the top options side by side.
Fiber foods that can work against you
Some foods with real fiber are still easy to overeat. Mayo Clinic flags dried fruit and fruit juice as concentrated sources of sugar that are higher in energy density and less filling.
Its example is striking: a cup of raisins has about 480 calories, while a cup of grapes has about 104. Same fruit, more than four times the calories in the same cup.
Fat is the other factor. Mayo Clinic notes that one pat of butter has about as many calories as 2 cups of raw broccoli, so a heavy dressing or butter sauce can erase the advantage of a vegetable side.
What a high fiber diet did in a real weight loss trial
A 2015 trial in the Annals of Internal Medicine tested a simple question. Could one goal, eating at least 30 grams of fiber a day, work as well as the American Heart Association’s diet with its many rules?
The 240 adults with metabolic syndrome were followed for 12 months. The high fiber group lost an average of 2.1 kg (about 4.6 pounds), and the AHA group lost 2.7 kg, a difference that was not statistically significant.
The authors concluded that a fiber focused approach may be a reasonable alternative for people who find complex diets hard to follow. The University of Massachusetts team also noted that eating more fiber came with other healthy changes, possibly because high fiber foods replaced less healthy ones.
Weight was not the only change. According to the university’s summary, participants in both groups lowered their blood pressure and improved insulin resistance over the year.
Mayo Clinic’s fiber guide explains the everyday side of this. High fiber foods tend to be more filling than low fiber foods, so you are likely to eat less and stay satisfied longer.
Fiber rich meals for a weight loss day
Here is one way to reach the trial’s 30 gram goal using foods from the table. Use it as a checklist rather than a strict plan.
- Breakfast: 1/2 cup oat bran cooked with 1 cup raspberries: 10.9 g fiber, 108 calories
- Lunch: 1/2 cup lentils over 1 cup cooked broccoli: 13.0 g fiber, 169 calories
- Afternoon snack: 1 medium pear: 5.5 g fiber, 103 calories
- Dinner: 1/2 cup black beans with 1 cup Brussels sprouts: 13.9 g fiber, 179 calories
By the afternoon snack you’re at 29.4 grams, and dinner takes the day to 43.3 grams for 559 calories from these foods. You’d add protein, healthy fats and seasoning on top to make full meals.
If you eat far less fiber today, build toward a day like this slowly. Mayo Clinic advises adding fiber over a few weeks and drinking plenty of water, since a sudden jump can cause gas, bloating and cramping.
Looking for dinners that start with lentils, beans and vegetables? Our recipe eBooks are full of high fiber meals that keep portions generous.
How to pick your first swap
You don’t need all 14 foods at once. Start with the one that fixes your biggest problem:
- If you get hungry between meals, add a half cup of beans or lentils to lunch.
- If dinner portions run large, fill half the plate with broccoli, cauliflower or Brussels sprouts first.
- If you crave something sweet at night, reach for a cup of berries rather than dried fruit.
- If breakfast never lasts, switch to oat bran with raspberries or stir a tablespoon of chia into what you already eat.
Not sure how much fiber your body actually needs? Our fiber calculator works out a personal daily target for you.
Questions about fiber and weight loss
Does eating more fiber help you lose weight?
It can help. In a 12 month trial, adults told only to eat at least 30 grams of fiber a day lost about 2.1 kg, close to the 2.7 kg lost on a more complex heart healthy diet.
How much fiber should I eat a day to lose weight?
There is no special weight loss number, but 30 grams a day was the goal in the main trial on this question. Mayo Clinic’s general targets are 25 grams for women and 38 grams for men up to age 50.
Which fruit has the most fiber for the fewest calories?
Raspberries and blackberries are hard to beat. A cup of either has about 8 grams of fiber for roughly 62 to 64 calories.
Are beans fattening?
No. Half a cup of cooked lentils or black beans has about 115 calories and 7.5 to 7.8 grams of fiber, and Mayo Clinic lists beans as high in protein and fiber and low in fat.
Is dried fruit good for weight loss?
Only in small amounts. Mayo Clinic notes that a cup of raisins has about 480 calories versus about 104 for a cup of grapes, so fresh fruit fills you up for far less.
Why does fiber keep you full?
High fiber foods add volume and take longer to digest. Mayo Clinic says they tend to be more filling than low fiber foods, so you are likely to eat less and stay satisfied longer.
Should I take a fiber supplement instead of eating high fiber foods?
Whole foods are the better first choice. Mayo Clinic says supplements don’t provide the variety of fiber, vitamins and minerals that whole foods do.
Sources
- Ma Y, Olendzki BC, Wang J, et al. “Single-Component Versus Multicomponent Dietary Goals for the Metabolic Syndrome: A Randomized Trial.” Annals of Internal Medicine. 2015. acpjournals.org
- UMass Chan Medical School. “When it comes to diets, one simple change can be effective.” 2015. umassmed.edu
- Mayo Clinic Staff. “Weight loss: Feel full on fewer calories.” Mayo Clinic, 2024. www.mayoclinic.org
- Mayo Clinic Staff. “Dietary fiber: Essential for a healthy diet.” Mayo Clinic, 2025. www.mayoclinic.org
- U.S. Department of Agriculture and U.S. Department of Health and Human Services. “Food Sources of Dietary Fiber.” Dietary Guidelines for Americans, 2020 to 2025. dietaryguidelines.gov
- U.S. Food and Drug Administration. “Daily Value on the Nutrition and Supplement Facts Labels.” 2024. www.fda.gov
