Abstract: The disease Mathumeham is called by different names; Neerilivu, Salarogam, Mihuneer, Vehumooththiram, Inippuneer, Mehaneer, Theanneer and diabetes. On the international basis this had affected many people. At the beginning only the rich became victims to this disease but now it affects both the rich and the poor. In books; “ Siddha Maruthuvam, Yuki vaidya Sinthamani, Pararajasekaram the following symptoms are cited for this disease, excessive excretion of urine, collection of ants and flies in places where a person passes urine, loss of physical strength exhaustion of body, dry mouth etc. Further in the same books the following have been quoted as the causes of this disease. 1. Consumption of more and more sweet foods. 2. Lack of physical exercise 3. Increase in body weight 4. Heredity The symptoms of the disease as quoted are 1. Excessive hunger 2. Thirst In Siddha Pharmacopia (Dr.P.Ramanathan, page 38) Mathumeka Chooranam with hot water is recommended as a medicine for it. 90 patients whose blood had a glucose level of 120 – 180 mg/dl (FBS test was made) both males and female between the ages of 40 – 70 years who attended the pre Ayurvedic medical clinics conducted in Vadamarachchi South and West Pradesha saba were selected for the study. In the selected 90 patients were given 1 teaspoonful Mathumeka Chooranam with hot water was given both morning and evening for 50 days. The patients were instructed about dietary restrictions and also not to use any other drugs. The treatment was given in 2010 June to 2010 November. The collected data were statically were recorded and analysis made, according to the analysis 80% of the patients who observed all diet restrictions, the FBS was seen reduced to 70 to 80 mg/dl. It was seen reduced to 40 to 50 mg/dl to 60% of dose to drug but ignored the diet restriction. It was seen reduced to 20 to 30 mg/dl to 50% who observed diet restriction only. Signs and symptoms