Disclosed is an agent which can be produced readily is easy to ingest and has an anti allergic activity. An extract of green soybean with a solvent can be used as an anti allergic agent. The extract of green soybean with a solvent has an inhibitory activity on the production of IgE and an activity of deflecting the Th1 Th2 balance in the Th1 side direction and is therefore useful as an anti allergic agent.
