One cup of cooked, shelled edamame (about 160 grams) contains 18.5 grams of protein and 224 calories. That makes it one of the most protein-dense plant foods you can eat, and one of the few that delivers all nine essential amino acids your body can’t make on its own.
Protein by Serving Size
How much protein you get depends on whether you’re eating shelled beans or whole pods. A cup of cooked, shelled edamame gives you 18.5 grams. If you’re snacking on edamame still in the pod, the actual bean weight is roughly half the total weight, so you’ll get less protein per cup of pods than per cup of shelled beans. For frozen edamame sold by weight, expect about 9.8 grams of protein per 80-gram serving.
That 18.5 grams per cup puts edamame in a useful range for meal planning. Two cups gets you close to the protein of a chicken breast, while a single cup covers roughly a third of the daily protein needs for a 150-pound adult aiming for the standard recommendation of 0.8 grams per kilogram of body weight.
How Edamame Compares to Other Legumes
Edamame punches above its weight relative to other legumes. Per 100 grams of cooked weight, soybeans (the mature version of edamame) deliver 10.6 grams of protein. Green and brown lentils come in at 8.8 grams, and chickpeas at 7.6 grams. Edamame sits near the top of that range because soybeans are inherently higher in protein than most other beans and pulses.
The bigger distinction is protein quality. Soy protein earns a perfect score of 1.0 on the PDCAAS scale, a measure of how well a protein meets human amino acid needs and how easily your body digests it. That puts it on par with eggs and cow’s milk. Most other legumes fall short on one or two amino acids, which is why nutrition guides often recommend pairing beans with grains. Edamame doesn’t need that pairing.
Why the Amino Acid Profile Matters
A cup of frozen, prepared edamame contains about 1,155 milligrams of leucine (42% of the recommended daily intake) and 1,155 milligrams of lysine (55% of the recommended daily intake). Leucine is the amino acid most directly involved in triggering muscle repair and growth after exercise. Lysine plays a key role in collagen production and calcium absorption.
These numbers matter if you’re relying on plant-based sources for most of your protein. Many plant proteins are low in leucine specifically, which means you’d need to eat larger portions to get the same muscle-building signal. Edamame closes that gap more effectively than most alternatives, though it still falls short of animal sources like whey or eggs on a gram-for-gram basis.
Beyond Protein: What Else You Get
Edamame isn’t just a protein delivery vehicle. One cup of cooked, shelled edamame provides about 20% of your daily iron requirement, making it a solid option for people who don’t eat red meat. It also supplies fiber (roughly 8 grams per cup), which slows digestion and helps keep blood sugar steady after eating.
Edamame contains soy isoflavones, plant compounds that interact weakly with estrogen receptors in the body. Cooked edamame has about 7.4 milligrams of daidzein and 7.1 milligrams of genistein per 100 grams. These amounts are modest compared to processed soy products like tofu or soy milk concentrate. The bulk of research on soy isoflavones shows they’re safe for the general population and may offer mild benefits for bone health and cholesterol levels.
Best Ways to Eat It
Frozen edamame is the most widely available form, and it retains its nutritional profile well. You can steam, boil, or microwave it in a few minutes. Cooking method doesn’t meaningfully change the protein content or quality, so pick whatever is most convenient. Boiling in salted water for 3 to 5 minutes is the classic approach. Steaming takes slightly longer but avoids waterlogging the beans.
Shelled edamame works well tossed into grain bowls, salads, stir-fries, or pasta. It blends into soups and purees smoothly. Whole pods with coarse salt are a simple high-protein snack, though you’ll eat more slowly since you have to squeeze each bean out of its shell. That slower pace can actually help with portion awareness if you’re tracking intake closely.
For maximum protein per meal, combine edamame with other complementary foods. Pairing it with rice or quinoa adds variety without needing to worry about amino acid gaps, since edamame already covers those on its own. A cup of edamame over a bowl of rice with vegetables easily delivers 25 or more grams of protein depending on portions.