Among beans highest in protein, cooked soybeans lead the list, with lupini close behind; most staples deliver 7–10 g per 100 g cooked.
Looking for a legume that pulls its weight at mealtimes? The clear leaders are soybeans and lupini. Right behind them sit familiar pantry stars such as black beans, kidney beans, navy beans, small white beans, pinto beans, chickpeas, and mung beans. The numbers below use cooked weights, since that’s how we eat them, and draw on lab-tested datasets used by dietitians and meal-planning tools.
Which Beans Are Highest In Protein? By Cooking Weight
This quick table ranks cooked beans by protein per 100 grams. It helps you compare options on an even footing, no guesswork. Values reflect typical plain, boiled beans without salt unless stated.
| Bean (Cooked) | Protein Per 100 g | Notes |
|---|---|---|
| Soybeans (Mature) | 18.6 g | Highest among common beans; rich in iron and potassium. Source: FoodData Central/MyFoodData. |
| Lupini (Lupin) | 15.6 g | Very high protein legume; often sold brined. Source: MyFoodData. |
| Small White Beans | 9.7 g | Strong showing for soups and stews. Source: MyFoodData. |
| Pinto Beans | 9.1 g | Staple in Latin dishes; balanced macros. Source: MyFoodData. |
| Black Beans | 8.9 g | Popular in bowls and burritos. Source: MyFoodData. |
| Chickpeas (Garbanzo) | 8.9 g | Great for hummus and curries. Source: MyFoodData. |
| Kidney Beans | 8.7 g | Common in chili; rinse canned to cut sodium. |
| Navy Beans | ~8.2 g | Classic for baked beans and casseroles. |
| Mung Beans | ~7.0 g | Used in dals and sprouts; gentle taste. |
| Adzuki Beans | ~7.5 g | East Asian staple for sweet or savory plates. |
Why Soybeans Sit At The Top
Soybeans store more protein in each bite than other common beans. A cooked 100 g portion lands near 18–19 g protein. A full cup pushes past 30 g. That’s a match for many animal foods on a per-cup basis while adding fiber and a softer fat profile. Meal-prep tip: simmer dried soybeans until tender, then chill for bowls and stir-fries; or use edamame for quick snacks and sides. (Numbers from lab-based datasets widely used in nutrition analysis.)
Lupini’s High-Protein Edge
Lupini beans come next. Per 100 g cooked, they deliver about 15–16 g protein. Many jars are brined; a quick rinse trims salt without denting protein. They keep their bite in salads and antipasti, and mash well into spreads. If you’re new to lupini, start with ready-to-eat packs, then move to dried once you like the taste and texture.
Beans Highest In Protein By Serving Size (1 Cup)
Protein density per 100 g is handy for comparisons. Serving size tells you what a bowl delivers. One cup measures real-world intake better than small grams. Here’s how common cooked beans stack up by the cup.
Protein targets vary by person. A widely cited baseline is 0.8 g per kilogram of body weight per day. See Harvard Health’s short explainer on the protein RDA for context. Harvard Health protein RDA. For nutrient details across bean types, the USDA’s database underpins many nutrition tools used by dietitians. USDA FoodData Central search.
| Bean (Cooked) | Protein Per 1 Cup | Reference |
|---|---|---|
| Soybeans (Mature) | ~31 g | MyFoodData entry for cooked soybeans. |
| Lupini (Lupin) | ~26 g | MyFoodData comparison tool. |
| Kidney Beans | ~17 g | MyFoodData cup output. |
| Black Beans | ~15 g | MyFoodData black beans page. |
| Pinto Beans | ~15 g | MyFoodData pinto beans page. |
| Chickpeas | ~14–15 g | MyFoodData chickpeas page. |
| Small White/Navy | ~15–17 g | MyFoodData white/navy bean entries. |
| Mung Beans | ~14 g | MyFoodData mung beans page. |
Cooked vs Dry: Get Apples-To-Apples Numbers
Dry beans look huge on paper because drying concentrates nutrients. Once cooked, water weight lowers the protein value per 100 g. All numbers above use cooked weights so choices line up fairly across the board. Canned beans sit close to cooked-from-dry figures after draining and rinsing.
Amino Acids And Pairing
Beans bring plenty of lysine but can be modest in methionine. You don’t need to combine foods in the same bite. Just eat varied staples across the day. Grains, nuts, and seeds balance the amino pattern well. Soybeans and lupini land higher on lysine and overall protein, so they can anchor bowls and mains when you want a bigger hit.
Fiber, Minerals, And Fullness
Protein tells only part of the story. Beans also add fiber that keeps meals steady and filling. Small white, black, pinto, and chickpeas pack solid fiber per cup. That mix of protein and fiber is one reason a bean-based lunch holds you longer than a sandwich that leans on refined starch.
Which Beans Are Highest In Protein? Smart Swaps And Uses
Say your recipe calls for kidney beans, yet you want more protein without changing the dish much. Swap in soybeans or split the batch half-and-half with lupini where the flavor fits. In soups, small white beans raise protein while keeping a mild taste. For chili, black beans and pinto hold shape and add 8–9 g per 100 g cooked. For hummus, a blend of chickpeas and white beans boosts protein and spreads smoothly.
Quick Ways To Lift Protein In Bean Meals
- Build bowls with soybeans: Cook a big pot, then portion and freeze. Add roasted vegetables, greens, and a tahini-lemon drizzle.
- Use lupini for crunch: Rinse jarred lupini and toss with tomatoes, olives, and herbs for a high-protein side.
- Blend beans into sauces: Puree white beans into tomato sauce to raise protein without changing flavor much.
- Top salads with black beans: A cup adds ~15 g protein plus fiber for slow, steady energy.
- Chickpea spreads: Whirl canned chickpeas with garlic and yogurt for a creamy, protein-rich dip.
Serving Size, RDA And Planning
Most adults do fine aiming for the standard protein baseline cited earlier. Use the cup table to plug gaps with whole foods. If you’re counting grams, anchor meals with a cup of beans plus a supporting protein such as tofu, eggs, or fish as your diet allows. If you’re plant-only, soybeans or lupini make targets easier on days you need more.
Close Variations Of The Keyword: When The Wording Changes
You may see the query written as “beans highest in protein,” “highest protein beans by cup,” or “protein in beans ranked.” All point to the same task: compare cooked beans and pick a fit for your taste, texture, and recipe. The ordered lists above answer that task quickly with numbers you can use today.
Common Questions On Label Details
Are The Numbers The Same For Edamame?
Edamame are immature soybeans. They carry less protein by weight than mature cooked soybeans, yet still land near 12 g per 100 g. That’s strong for snacks and sides.
Do Canned Beans Lose Protein?
Protein itself holds steady. Canning adds water and salt; a rinse brings sodium down while protein per cup remains in the same ballpark as cooked-from-dry.
What About Lectins Or Phytates?
Soaking and proper cooking drop these compounds to typical, safe levels in common diets. Traditional methods like boiling or pressure cooking do the job.
Bottom Line On High-Protein Beans
Soybeans take first place for cooked protein density. Lupini follow. For everyday staples, small white, pinto, black, kidney, chickpeas, navy, and mung beans sit in the 7–10 g per 100 g range. If your goal is a bigger protein lift with familiar flavors, start with white, black, or pinto in soups and bowls. When you want a true protein anchor, reach for soybeans or lupini. That’s the practical answer to “which beans are highest in protein?” across both 100 g and 1-cup servings.