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  1. Does puberty alter dietary habits in adolescents living in a western society ?

    Article - En anglais

    Purpose 

    Puberty is considered to be a period with major behavioral changes and alterations in lifestyle.

    It is also assumed that important modifications in food habits would occur during pubertal maturation, particularly in affluent societies.

    To test this hypothesis, we conducted a prospective survey in 193 adolescents (95 females and 98 males) aged 9-19 years.

    Methods 

    Food intake was assessed using a 5-day dietary diary method with weighing of most food intakes.

    Diaries were analyzed for macronutrient consumption with a nutrition determination software integrating food composition tables and 103 local food items.

    The stage of puberty or sexual maturity was clinically assessed and rated from stage P1 (prepubertal) to P5 (adult).

    Results 

    The total energy intake which was within the recommended dietary allowances (RDA) was significantly influenced by both pubertal maturation and sex when expressed in absolute terms, but by pubertal stages only when adjusted per kilogram of body weight.

    Compared with RDA, the macronutrient distribution of the total energy intake showed an excessive quantity of fat (especially saturated fatty acids) and an insufficient amount of carbohydrate-rich fibers.

    The intakes of proteins, of which two out of three came from animal sources, were above RDA.

    Overall, these inadequacies in the macronutrient intake distribution were constant throughout pubertal maturation. (...)

    Mots-clés Pascal : Suisse, Europe, Enfant, Homme, Préadolescent, Adolescent, Adulte jeune, Sexe, Maturité sexuelle, Puberté, Consommation alimentaire, Energie, Macronutriment, Fibre alimentaire, Pays industrialisé, Comportement alimentaire, Alimentation, Surveillance sanitaire, Habitude alimentaire

    Mots-clés Pascal anglais : Switzerland, Europe, Child, Human, Preadolescent, Adolescent, Young adult, Sex, Sexual maturity, Puberty, Food intake, Energy, Macronutrient, Dietary fiber, Industrialized country, Feeding behavior, Feeding, Sanitary surveillance, Dietary habit

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 96-0398450

    Code Inist : 002B29B. Création : 10/04/1997.