1, concanavalin can't be eaten raw, because concanavalin contains two toxic substances, one is saponin in pod skin, which can destroy human cells and cause hemolysis, and the other is phytohemagglutinin, which is easy to be destroyed after heating, so concanavalin can only be eaten after being cooked.

2. Nutritional value of concanavalin: Concanavalin is rich in protein, various amino acids, urinary enzymes, hemagglutinin, concanavalin and so on. Regular consumption can strengthen the spleen and stomach and increase appetite; The seeds of cananga canadensis L. have very specific damage and inhibition effects on dead cells. The sword bean is sweet in taste and flat in nature, and has the effects of warming the middle warmer, lowering qi, stopping vomiting and tonifying kidney. It can effectively treat lumbago caused by vomiting, abdominal distension and kidney deficiency after illness.