Determinants of energy intake in Central African populations experiencing nutrition transition.
2021
Central Africa is experiencing rapid urbanization and this situation comes along with changes in food habits and an increased prevalence of obesity and associated health risks. Factors influencing dietary intake among the diverse African populations are not well understood. Our objective was to characterize the dietary intake and their determinants in the two main ethnic groups experiencing nutrition transition in Cameroon, the Bamileke and the Beti. We sampled Bamileke (381) and Beti (347) adults living in both rural and urban, collected sociodemographic variables, assessed dietary patterns by using a food portion photographs book to administrate a food frequency questionnaire (FFQ) and a 24-hour dietary recall technique, and derived their Body Mass Index (BMI) from measured weight and height. The dietary patterns of Bamileke people were comprised of more energy-dense foods than the Beti people, regardless of the living area. The energy intake (13·8 (SD 4·6)-15·4 (SD 4·8) MJ vs 9·7 (SD 3·5)-11·2 (SD 3·9 MJ) and the obesity (15-29 % vs 5-8 %) were therefore higher in Bamileke than in Beti respectively. Multivariable linear regression analyses showed strong associations of both ethnicities (4·02 MJ; P <0·001), living area (0·21 MJ; P <0·001), and education (0·59 MJ; P <0·048) with energy intake (EI), independently of each other and other sociodemographic factors. The ethnicity factor has been characterized as the more important determinant of diet. Our findings provide new insights and perspectives highlighting the importance of anthropological factors when building prevention campaigns against obesity in Central Africa.
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