The prevalence of overweight and obesity in ethnic minorities has only been investigated in a few studies. Table 2 gives an overview on 4 studies on minorities in France, Germany and the USA. Among children aged from birth to 4 years living the Paris area, the prevalence of obesity was higher in children of Maghrebian origin compared to French reference children in the 1970s and in the 1990s [6]. In the urban areas of England, several ethnic groups were compared in terms of weight for height [31, 32]: there was a clear trend of an increase in overweight in Indian children, whereas no such trend was detectable in white children and in Afro-Caribbean children.
In Germany, the frequency of obesity in 5- and 6-year-old non-German boys was 2.4 times higher than in their German peers. The respective ratio for girl was 1.9 times. Non-German children were also more likely to be overweight [3]. In the US National Longitudinal Survey of Youth (NLSY) an impressive increase of overweight in African-American and Hispanic adolescents has been observed. These data were adjusted for family income, child age, maternal age, sex, region of residence and urbanization status [7]. A cross-sectional study in San Antonio, Tex., revealed that the prevalence of obesity (BMI 95th percentile) was greater in Mexican-American (15–28%) and African-American (11–29%) boys and girls than in their white (7–17%) counterparts. The prevalence of overweight (BMI 85th percentile) was highest in Mexican-American boys (40–50%), Mexican-American girls (34–52%), and African-American girls (33–51%) [33].
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