The problem of diabetes is large unknown due to lack of good epidemiological studies. The author's own studies showed a prevalence rate, in the Malays, of less than 1.0% in remote rural areas, 3.9% in a village close to Kuala Lumpur, and 3.0% for Malays working in a railway yard in Kuala Lumpur. The prevalence rate for the Chinese was 4.9% in the same survey, and for the Indian it was 16.0%. A survey in GHKL showed that 17.9% of the patients admitted for a month period in 1986 were due to diabetes and its complications. Majority of diabetes in Malaysia are non-insulin-dependent type.