It has been cleared that leaves of asparagus contain lots of rutin, saponin and minerals derived from plants and in the industry-government-academia project in which Hokkaido food/industry cluster association under Ministry of Agriculture, Forestry and fisheries of Japan and Hokkaido University participate, they have various kinds of possibilities against lifestyle habit for middle-aged people.
It has also been being cleared that they are effective to get a feeling of relaxation by the current research.