American Journal of Clinical Nutrition, Vol 59, 1069-1074, Copyright © 1994 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Relationship of hyperinsulinemia to dietary intake in south Asian and European men

L Sevak, PM McKeigue and MG Marmot
Department of Epidemiology and Population Sciences, London School of Hygiene and Tropical Medicine, UK.

In South Asians (Indians, Pakistanis, and Bangladeshis) settled overseas, high rates of coronary disease and non-insulin-dependent diabetes occur in association with central obesity and insulin resistance. To examine whether these disturbances were related to diet, we measured 7-d weighed intakes in 173 South Asian and European men aged 40-69 y in London. In South Asians compared with Europeans, respectively, mean energy intake was lower (9.5 vs 10.8 MJ/day, P < 0.001), total fat intake was lower (36.5% vs 39.2% of energy intake, P = 0.007), starch intake was higher (28.0% vs 21.5% of energy, P < 0.001), polyunsaturated fatty acid intake was higher (8.2% vs 7.0% of energy, P = 0.02), and dietary fiber intake was higher (3.2 vs 2.0 g/MJ, P < 0.001). Elevated serum insulin concentrations at 2 h postglucose were associated positively with carbohydrate intake (P = 0.001) and inversely with alcohol intake (P = 0.006), but not with saturated fatty acid intake. The high coronary risk in South Asian people is not explained by any unfavorable characteristic of South Asian diets.

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