Eating black beans in moderation is generally not harmful, but large intake of black beans may cause indigestion and other discomforts.
Black beans are rich in calcium (224mg/100g), phosphorus (500mg/100g) and so on.
Black beans are rich in high-quality protein (36g/100g), and rich in lysine, which is lacking in cereal proteins, the protein contained in black beans is a complementary food with cereal proteins.
In addition, black beans in the fat content of 15% to 20%, which contains 85% unsaturated fatty acids, 50% linoleic acid, but also contains more on the cardiovascular and cerebrovascular, osteoporosis beneficial phospholipids, soy isoflavones, soybean oligosaccharide.
It can be seen that the nutritional value of black beans is very high, generally moderate consumption of human body will not be harmful. However, excessive intake, may trigger indigestion and other uncomfortable symptoms, soy allergy should not eat soy.