Black beans
Black beans are a special type of bean abundant in South America. They are black-seeded and usually dry. Black beans are a rich source of lysine and can be consumed with virtually anything. One cup of black beans should contain about 1,050 milligrams [7] of lysine.
Adzuki beans
Adzuki beans are a popular Asian delicacy. Also called red mung beans, they may be used to make red bean paste-filled pastries. This sweet dish is common in countries in the Pacific. You could also cook them like regular beans for consumption. You can get 1,300 grams [8] of lysine from a cup of these beans. A cup is about 230 grams of beans.