Nishshanka AS, Kulatunga R.D.H, Review of  Astha Ahara Vidhi Visheshayatana and Ahara Vidhi Vidhana  in the Management of Non Communicable Diseases / NCD- A literary review, 1st National symposium on  Native Medicine ,19th&20th  September, Institute of Indigenous Medicine , Rajagiriya, Sri Lanka, 2014