Insulin sensitivity and ethnic groups

Epidemiological surveys show a large variation of type 2 diabetes (DT2) pre valence from one country to another, suggesting ethnic discrepancies in ins ulin sensitivity. Many data seem to confirm this hypothesis. We will show t hem while concentrating on data provided by surveys performed in French-spe aking countries. The mechanisms of the ethnic differences in insulin sensit ivity are unclear and further insights are needed. More than genetic factor s, environmental factors appear to be involved in the occurence of insulin resistance and DT2. The epidemic nature of obesity and subsequent DT2 in th e world urges health authorities in each country to raise campaigns to prom ote changes in life style and nutritional habits before the announced pande my of DT2 becomes reality.