Butter Beans Protein Content | The Numbers Per Serving

One cup of cooked butter beans has about 15 grams of protein, with a filling mix of fiber and slow-digesting carbs.

Butter beans are lima beans by another name. In the U.S., “butter beans” often points to the larger, cream-colored mature beans you buy dried or canned. The protein count can feel slippery, since the bean changes a lot between dry, cooked, canned, and drained.

What Counts As A Butter Bean Serving

When someone says “a serving,” they might mean what fits in a measuring cup, what a Nutrition Facts label calls a serving, or what you actually scoop onto a plate. Those can be three different things.

Here are the three serving styles you’ll run into most:

• Cooked volume: a measured cup after boiling, usually drained.
• Cooked weight: grams after cooking (useful for meal prep and tracking).
• Canned, drained: what you get after you pour off the liquid and rinse.

USDA FoodData Central lists nutrient values for butter beans under lima beans, including “large, mature seeds, cooked, boiled, without salt.” You can cross-check your numbers there when you want a baseline. USDA FoodData Central nutrient entry for cooked lima beans

Butter Beans Protein Content: What You Get Per Cup

For a quick anchor, start with a full cup of cooked butter beans. A cup is big enough to matter in a meal and common in recipes like bean soups, stews, and warm salads.

One cup (about 188 grams) of cooked, boiled butter beans lands at roughly 14–15 grams of protein, based on USDA data for cooked mature lima beans. That puts a cup of beans in the same protein range as two large eggs, while bringing far more fiber.

If you’re scanning a can label, you may see smaller serving sizes like 1/2 cup. Halving the portion cuts the protein close to half, too, since beans are pretty uniform once cooked and drained.

Protein Per 100 Grams

Food databases also list values per 100 grams. That’s handy when you weigh portions. Cooked butter beans sit near 7–8 grams of protein per 100 grams of drained beans.

When you weigh a bowl, cooked beans hold water. Dry beans look protein-dense on paper, then they absorb water and swell, so the protein per gram drops after cooking.

Protein Per Label Serving And Percent Daily Value

In the U.S., Percent Daily Value (%DV) on labels uses FDA reference amounts. The Daily Value for protein is 50 grams per day on a 2,000-calorie diet. FDA Daily Value reference table

A 1/2-cup serving of cooked butter beans usually gives around 7–8 grams of protein, which is around 14–16% of the 50-gram Daily Value. A full cup doubles that to close to 30% DV.

Why Butter Bean Protein Numbers Change Across Packages

If you’ve compared labels and felt confused, you’re not alone. These are the usual reasons the count shifts:

• Drained vs. not drained: liquid in the can adds weight with no protein.
• Different bean size: baby lima beans and large lima beans are not the same entry.
• Added ingredients: some canned beans include salt, sugar, or sauce.
• Rounding rules: labels round grams, so small gaps show up fast.

To keep it simple, pick one “home base” number for planning, then treat label values as the tie-breaker. If you eat mostly canned butter beans, use the can’s serving size and protein number. If you cook dry beans, use cooked-and-drained portions.

How Butter Beans Fit In A Day Of Protein

Protein needs vary by body size, age, training, and total calories. A practical way to think about beans is as one piece of a protein pattern you repeat across the day.

MedlinePlus notes that many adults aim for 10% to 35% of daily calories from protein, and that protein provides 4 calories per gram. MedlinePlus: Protein in diet

If your target is 90 grams of protein in a day, a cup of butter beans lands near one-sixth of it. Two meals with 3/4 cup each gets you close to 22 grams of bean protein across the day, before you count anything else on the plate.

How To Build A Higher-Protein Butter Bean Plate

Butter beans can carry a meal, yet they shine even more when paired with a second protein source. The goal is not to turn beans into a “protein hack.” The goal is a plate that tastes good and hits your target without weird math.

Pair With A Grain For A Strong Amino Acid Mix

Beans are rich in lysine and lower in methionine, while many grains lean the other way. Put them together and you fill the gaps across the day. You don’t need to match them in the same bite, but many classic meals already do: beans with rice, beans with corn, beans with wheat bread.

USDA’s MyPlate groups beans with protein foods and also with vegetables, since they bring more than protein alone. MyPlate: Beans, peas, and lentils

Add A Lean Protein Topper

If you want the bowl to feel hearty, add one of these on top:

• Flaked tuna or salmon
• Shredded chicken or other poultry
• Eggs, soft-boiled or poached
• Firm tofu, pan-seared

Keep the bean portion steady, then layer the topper to meet your protein target. This keeps the flavor and texture of butter beans as the main event.

Table: Butter Bean Protein By Common Serving Sizes

Use this as a quick lookup when you’re planning meals. Values reflect cooked, drained butter beans (mature lima beans). Canned beans can land lower if the label serving includes extra liquid.

Serving	Protein (g)	Calories (kcal)
1/4 cup cooked (about 47 g)	3.7	54
1/3 cup cooked (about 63 g)	4.9	72
1/2 cup cooked (about 94 g)	7.3	108
3/4 cup cooked (about 141 g)	11.0	162
1 cup cooked (about 188 g)	14.7	216
100 g cooked	7.8	115
200 g cooked	15.6	230
1 can, drained (brand-to-brand range)	12–18	180–260

How To Get Accurate Protein Counts In Real Cooking

If you want your tracking to match what you eat, pick a method and stick with it for a week. Consistent logging beats chasing the “perfect” number.

Method 1: Measure Cooked Cups

After cooking, drain the beans well, then measure in a dry measuring cup. Level it off with a knife, like flour. Log the protein using the cup value you trust.

Method 2: Weigh Cooked Grams

Put your bowl on a kitchen scale, tare to zero, then add the beans. If your food log uses 100-gram entries, this method is clean and repeatable.

Method 3: Use The Can Label

For canned butter beans, the label is the best match to what’s in your pantry. Drain and rinse, then see if the serving size is listed “drained.” If it’s listed “as packaged,” your drained portion will weigh less than the label, so the label’s protein per serving may not line up with your measured cup.

Table: Protein Percent Daily Value From Butter Bean Portions

This table uses the FDA Daily Value for protein (50 g). It’s a simple way to see how a bean portion fits in your day without turning meals into a spreadsheet.

Cooked Portion	Protein (g)	%DV (50 g)
1/4 cup	3.7	7%
1/3 cup	4.9	10%
1/2 cup	7.3	15%
3/4 cup	11.0	22%
1 cup	14.7	29%
1 1/2 cups	22.0	44%
2 cups	29.4	59%

Low-Stress Meal Ideas That Keep The Protein Math Simple

Here are ways to use butter beans where the portion is easy to repeat:

• Soup base: Start with 3/4 cup beans per bowl, then add vegetables and broth. Finish with shredded chicken, tofu cubes, or grated cheese.
• Warm salad: Toss 1/2 cup beans with chopped herbs, diced cucumber, and olive oil. Add tuna or eggs on top.
• Skillet beans: Sauté garlic and greens, stir in 1 cup beans, then top with a protein you already like.

Pick one portion and repeat it. Once your hand knows what 1/2 cup looks like in your bowl, the numbers stop being a guessing game.

Common Mix-Ups With Butter Bean Protein Numbers

If you’re still seeing mixed numbers, check these fast fixes:

• Your beans are baby limas: baby limas are smaller and can list different values from large mature beans.
• Your can lists as packaged: liquid weight changes the math. Drain, then compare by grams.
• Your recipe uses butter beans in sauce: the sauce adds weight with little protein. Count the beans, not the whole pot.
• Your scoop is heaping: a heaping cup can add 20–40 grams of beans, which adds protein.

Takeaway: A Practical Protein Number To Use

If you want one number you can lean on, use this: 1 cup cooked, drained butter beans gives about 15 grams of protein. Use 1/2 cup when you want a lighter side, or 3/4 cup when beans are the core of the meal.

Once you pick your portion, the rest is taste. Build the bowl around what you enjoy, then use the tables above to keep the protein count steady.