In this article
- Cannellini beans fiber at every serving size
- White kidney beans fiber and the minerals that come with it
- How cannellini compare to other beans
- Italian beans nutrition: cannellini in the kitchen
- Myth vs fact: white kidney bean extract
- The prep step dried cannellini always need
- Cannellini and digestion
- A bowl of pasta e fagioli, counted
- Why beans like cannellini matter for your heart
- Fitting cannellini into a week
- One thing to do this week
- Questions about cannellini and fiber
- Sources
Forty percent. That’s how much of the 28 gram Daily Value for fiber you get from a single cup of cooked cannellini beans, which hold about 11.3 grams of fiber according to USDA FoodData Central.
Mayo Clinic’s high fiber chart puts a cup of canned cannellini even higher, at about 13 grams. Below, you’ll find cannellini beans fiber broken down by serving, how these Italian white beans compare to other beans, and the one prep step dried cannellini always need.
Cannellini beans fiber at every serving size
Cannellini are large white kidney beans, the same species as red kidney beans but milder and creamier. USDA lists them under cooked white beans.
| Cannellini beans, cooked | Fiber | % Daily Value | Calories | Protein |
|---|---|---|---|---|
| 1/4 cup (45 g) | 2.8 g | 10% | 62 | 4.4 g |
| 1/2 cup (90 g) | 5.7 g | 20% | 125 | 8.8 g |
| 1 cup (179 g), from dry | 11.3 g | 40% | 249 | 17.4 g |
| 1 cup, canned (Mayo Clinic) | 13 g | 46% | n/a | n/a |
| 100 grams | 6.3 g | 23% | 139 | 9.7 g |
The smaller servings are scaled from USDA’s per 100 gram values. The gap between home cooked and canned comes from how each source measures a cup, and from brand to brand differences in canned beans.
Either way, half a cup of cannellini brings more fiber than a cup of cooked broccoli. For one scoop of beans, that’s a lot of work done.
White kidney beans fiber and the minerals that come with it
Fiber is only part of the package. A cup of cooked white beans also carries, by USDA values:
| Nutrient, 1 cup cooked | Amount | % Daily Value |
|---|---|---|
| Potassium | 1,004 mg | 21% |
| Iron | 6.6 mg | 37% |
| Magnesium | 113 mg | 27% |
| Folate | 145 µg | 36% |
| Calcium | 161 mg | 12% |
That iron figure stands out. More than a third of the Daily Value in one cup, from a food with almost no fat, is a strong showing, and the potassium tops 1,000 milligrams on top of it.
Harvard’s Nutrition Source counts legumes among the better plant sources of protein, folate, iron and phosphorus, with the little fat they have being mostly unsaturated. Cannellini fit that profile closely.
Curious how a cup of cannellini stacks up against your own daily target? Our fiber calculator works out a personal number for you in seconds.
How cannellini compare to other beans
Among common beans, cannellini sit in the middle of the pack for fiber per cup. Here’s how they line up using USDA FoodData Central values for beans cooked from dry:
| Bean, 1 cup cooked | Fiber | Calories | Fiber per 100 calories |
|---|---|---|---|
| Navy beans | 19.1 g | 255 | 7.5 g |
| Black beans | 15.0 g | 227 | 6.6 g |
| Lima beans, large | 13.2 g | 216 | 6.1 g |
| Chickpeas | 12.5 g | 269 | 4.6 g |
| Great northern beans | 12.4 g | 209 | 5.9 g |
| Cannellini (white beans) | 11.3 g | 249 | 4.5 g |
If you want the most fiber in a white bean, navy beans win easily. Per cup, USDA puts them almost 8 grams ahead of cannellini.
Cannellini make up for it in size and texture. They’re larger, with a creamy center that works well in soups, salads and spreads.
Great northern beans sit between the two in size and give slightly more fiber per cup. In most recipes, any of the three can stand in for another.
Italian beans nutrition: cannellini in the kitchen
Cannellini are a staple of Italian cooking, especially in Tuscany. They show up in minestrone, pasta e fagioli, ribollita and simple dishes of beans dressed with olive oil, garlic and sage.
Those classic pairings happen to be smart nutrition, too. Beans bring fiber and protein, and leafy greens like kale or chard add fiber of their own to the same bowl.
- Stir a cup of cannellini into minestrone in the last 10 minutes
- Mash them with lemon, garlic and olive oil for a toast topping
- Toss with tuna, red onion and parsley for a fast lunch
- Simmer with tomatoes and greens for a one pot side
- Blend into soups instead of cream for body and fiber
Want more ways to cook with white beans? Our recipe eBooks are full of easy, high-fiber Italian style meals.
Myth vs fact: white kidney bean extract
Myth: White kidney bean extract supplements give you the benefits of eating cannellini beans.
Fact: The supplements are a concentrated alpha-amylase inhibitor, a protein that slows the enzyme your body uses to break down starch. They’re sold as “carb blockers” and contain little or none of the bean’s fiber, iron or potassium.
A 2018 meta-analysis by Udani and colleagues in the journal Foods pooled 11 studies with 573 people taking one branded white bean extract, most often 3,000 milligrams a day for one to three months. Weight loss averaged about 1.1 kilograms more than placebo.
That’s a modest result, and the review was funded by the extract’s manufacturer, with several of the included studies unpublished. A cup of whole cannellini, with 11 grams of fiber and 17 grams of protein, is a much better documented way to feel full.
The prep step dried cannellini always need
All kidney beans, white ones included, contain a natural lectin called phytohaemagglutinin, or PHA. Raw or undercooked beans can cause vomiting and diarrhea within a few hours.
Kansas State University notes that cannellini contain about one third of the PHA found in red kidney beans, so they’re lower but not free of it. Following FDA guidance, K-State recommends this routine for dry beans:
- Soak dry beans for at least 5 hours
- Drain and discard the soaking water
- Boil in fresh water for at least 30 minutes
- Don’t rely on a slow cooker to cook dry kidney beans from raw
Canned cannellini are already cooked, so they’re ready to use straight from the can. Rinsing them also cuts some of the added sodium.
Cannellini and digestion
Like other beans, cannellini carry fermentable carbohydrates called oligosaccharides. Harvard’s Nutrition Source notes these can cause gas, and that soaking dried beans for at least three hours and cooking them well may help.
Cannellini also offer both soluble and insoluble fiber. Soluble fiber forms a gel that can help with cholesterol and blood sugar, while insoluble fiber adds bulk and keeps things moving.
If you’re new to beans, start with a quarter cup a few times a week and work up. Your gut bacteria adjust over time, and the gas usually eases.
If bloating has been holding you back from beans, our gut health guides walk you through building up slowly.
A bowl of pasta e fagioli, counted
Pasta e fagioli, the Italian pasta and bean soup, is where cannellini really earn their keep. Picture a generous bowl made with half a cup of cannellini, a cup of cooked pasta, tomatoes, onion and broth.
With regular pasta, the beans do most of the fiber work, bringing about 5.7 grams on their own. Swap in whole wheat pasta, which Mayo Clinic lists at about 6 grams per cooked cup, and the bowl climbs to nearly 12 grams.
Double the beans to a full cup and use whole wheat pasta, and the same bowl lands around 17 grams. That’s well over half of the 28 gram Daily Value from one dinner.
The tomatoes, onion and any greens you add bring a little more. It’s an easy way to see how swapping one or two ingredients changes the whole meal.
Why beans like cannellini matter for your heart
Harvard’s Nutrition Source summarizes a meta-analysis of 11 trials in which eating pulses lowered LDL cholesterol by about 6% and total cholesterol by about 7%. Soluble fiber is one likely reason.
Harvard also cites 36 trials showing that replacing red meat with plant proteins like legumes improved cholesterol, triglycerides and blood pressure. Cannellini are an easy swap in that sense. Their mild flavor and creamy texture fit into dishes where you might otherwise use sausage or ground beef, like a white bean and greens soup or a pasta sauce.
Fitting cannellini into a week
The Dietary Guidelines for Americans recommend about 3 cups of legumes a week for a typical adult, as Harvard’s Nutrition Source points out. Cannellini can cover a good share of that on their own.
Two cups of cannellini over a week, split across a soup, a salad and a bean toast, adds about 22 to 26 grams of fiber. That’s close to a full day’s 28 gram Daily Value, spread across seven days.
Mayo Clinic’s chart is a handy reference here: it lists canned cannellini alongside split peas, lentils and black beans as some of the highest fiber foods you can buy.
One thing to do this week
Buy two cans of cannellini and put one in your next soup or pasta sauce. Rinse them, stir them in for the last 10 minutes, and you’ve added roughly 13 grams of fiber to the pot without changing the recipe.
Keep the second can for a quick bean toast or salad later in the week. Once cannellini are a pantry habit, the fiber takes care of itself.
Questions about cannellini and fiber
How much fiber is in half a cup of cannellini beans?
About 5.7 grams in half a cup of cooked cannellini, or around 20% of the Daily Value. That’s more than a full cup of cooked broccoli.
Are cannellini beans the same as white kidney beans?
Yes. Cannellini is the Italian name for white kidney beans, a larger, creamier relative of the red kidney bean.
Do cannellini beans have more fiber than navy beans?
No. Navy beans have about 19 grams per cooked cup, compared with about 11 grams for cannellini cooked from dry.
Are cannellini beans high in protein?
Yes. A cup of cooked cannellini has about 17 grams of protein, plus 11 grams of fiber, for about 250 calories.
Can you eat canned cannellini beans without cooking?
Yes. Canned cannellini are already cooked, so you can rinse and eat them cold or warm them through.
Do white kidney bean supplements have fiber?
Very little. The extracts are concentrated starch blockers, not whole beans, so they don’t replace the fiber in a serving of cannellini.
Are cannellini beans good for weight loss?
They can help. Their mix of fiber and protein is filling, and a cup supplies about 40% of the fiber Daily Value for around 250 calories.
Sources
- U.S. Department of Agriculture, Agricultural Research Service. “Beans, white, mature seeds, cooked, boiled, without salt (FDC 175203).” FoodData Central. 2019. fdc.nal.usda.gov
- Mayo Clinic Staff. “Chart of high-fiber foods.” Mayo Clinic. 2025. mayoclinic.org
- Harvard T.H. Chan School of Public Health. “Legumes and Pulses.” The Nutrition Source. 2024. nutritionsource.hsph.harvard.edu
- Blakeslee K. “Cooking dry beans safely.” Kansas State University. 2017. k-state.edu
- Udani J, Tan O, Molina J. “Systematic Review and Meta-Analysis of a Proprietary Alpha-Amylase Inhibitor from White Bean (Phaseolus vulgaris L.) on Weight and Fat Loss in Humans.” Foods. 2018;7(4):63. doi:10.3390/foods7040063 pmc.ncbi.nlm.nih.gov
