Nilgiri Biosphere Reserve is home to more than 30 distinct indigenous communities, each of which has its own understanding of wild foods collection and preparation. Keystone promotes the communities to keep the knowledge of wild foods and traditional seeds alive. Wild foods and medicinal plants are essential for nutritional intake of the people and is an integral part of the Adivasi culture. The work with wild foods also includes taking the traditional wild food back into the diet and promoting them through nurseries and kitchen gardens.

Wild edible tuber, rhizome, fruits and young shoot species are an important source of the food in the diets of the indigenous communities. They not only enrich the diet of the people but also possess medicinal properties. Many species are used as stimulants, tonics, carminatives and expectorants.