A 15.5 ounce can of black beans carries about 26.5 grams of protein. That’s roughly 53 percent of the FDA’s 50 gram Daily Value, from a can that cost $0.88 in July 2026. It also brings about 24.6 grams of fiber, which is nearly the entire 28 gram Daily Value from one 88 cent can.
That second number is the one nobody expects. Beans get filed under “cheap protein” and quietly do more work on fiber. Here are the three canned beans in our dataset, priced and measured.
| Canned bean (15.5 oz can) | Price | Protein per can | Fiber per can | Protein per $1 |
|---|---|---|---|---|
| Black beans | $0.88 | 26.5 g | 24.6 g | 30.1 g |
| Kidney beans | $0.98 | 22.9 g | 18.9 g | 23.4 g |
| Chickpeas | $0.98 | 21.6 g | 21.1 g | 22.0 g |
Source: USDA FoodData Central + US store prices, July 2026. Full methodology at /methodology/.
Which canned beans have the most protein?
Black beans, of the three we priced. They lead on protein per can, on fiber per can, and on protein per dollar, and they’re also the cheapest can on the shelf at $0.88. That’s a rare clean sweep.
We should be straight about the limit here. Our datasets cover canned black beans, canned kidney beans, and canned chickpeas. We haven’t priced canned cannellini, canned pinto, or canned navy beans, so if you came here to find out where those land, we genuinely don’t know and we’re not going to guess. Three cans is what we audited, and three cans is what we’ll claim.
Within those three, the spread is smaller than people expect. Twenty-two to twenty-six grams of protein a can, all under a dollar. You are not making a costly mistake by grabbing the wrong one. Grab what the recipe wants.
How much fiber is in a can of beans?
Between 18.9 and 24.6 grams, which is the part of the label most people skip.
A can of black beans at 24.6 grams sits at about 88 percent of the FDA’s 28 gram fiber Daily Value. One can. For 88 cents. In the fiber per dollar ranking canned black beans placed 15th of 53 foods at 27.9 grams per dollar, ahead of every fresh fruit and every fresh vegetable we priced.
If you’re currently nowhere near 28 grams a day, dropping a whole can into dinner is a big jump. That can be uncomfortable, and the fix is gradual rather than heroic. We wrote up the sensible version in how to increase fiber intake without gas, and the short answer involves more water and more patience.
Are canned beans worth it compared to dry?
For your wallet, no. For your Tuesday, absolutely.
Dry black beans returned 81.0 grams of protein per dollar. The canned version returned 30.1. That’s about 2.7 times more protein for the same money if you do the soaking and simmering yourself, and the gap holds across every bean we checked both ways in canned versus dry beans. You’re paying somebody to cook the beans and then paying to ship the water they cooked in.
Here’s the thing though. At $0.88 a can, canned beans are still one of the cheapest sources of protein in the entire store in absolute terms. They only look expensive because they’re standing next to the single best value in the building. In our no-cook protein ranking, an 88 cent can of black beans is the cheapest item on the list, and that ranking exists precisely because sometimes the stove is not happening.
My setup is both. Bags of dry beans for the cooking I plan, four or five cans for the cooking I don’t. If you want to close the gap without the overnight soak, the same-day quick soak method gets dry beans on the table in an afternoon.
What do you actually do with a can of beans?
Open it, rinse it, and put it somewhere it can do work. Half a can of black beans is 13.3 grams of protein for about 44 cents, which turns a plate of rice into a meal with an actual protein number attached.
Chickpeas are the versatile one. A can becomes homemade hummus in the time the food processor takes to stop rattling, or crispy roasted chickpeas if you want the snack version. Black beans go straight into weeknight tacos, or black bean burgers that hold their shape, or a cold corn salsa with no cooking at all. Kidney beans are chili beans and always have been, which is why they show up in three bean chili.
One habit worth building: rinse them. It knocks down the canning liquid, cuts some of the sodium, and stops your dinner tasting faintly like the inside of a can. The gram totals in our table describe the can as sold, so what ends up on the plate after draining will be a little lower.
Twenty-six grams of protein and twenty-four grams of fiber for 88 cents is not a compromise you should feel bad about. It’s just a slightly more expensive version of the cheapest food in the store, and the extra cost buys you back an hour. The full map of where beans sit against everything else lives in our high protein on a budget guide.
