Essential amino acids are critical for building protein. For more information, see the Wikipedia page on them.
Protein Quality Score: 100%†
Limiting Amino Acid: Methionine
Some foods that are a good source of Methionine include eggs, meat, fish, sesame seeds, Brazil nuts and some other plant seeds, and cereal grains.
100g of Cowpeas, common (blackeyes, crowder, southern), mature seeds, canned with pork contains 2.7g of protein, which is about the same as
0.1 chicken breasts, or
0.2 cups (53g) of black beans.
† - Not adjusted for digestibility. See the tables
Profile of Carbohydrates in Item
Fraction of Carbs by Type
* Other includes oligosaccharides and other polysaccharides.