BackgroundOverweight and obesity in children in Mexico was among the countries with the highest prevalence's in the world. Mexico currently has few innovative and comprehensive experiences to help curb the growth of this serious public health problem. Therefore, the aim of this study is to assess the effectiveness of a nutrition and physical activity strategy, called "Nutrition on the Go" ("nutrición en movimiento") in maintaining the BMI values of school children in the State of Mexico.MethodsA two-stage cluster trial was carried out. Sixty schools were selected in the State of Mexico, of which 30 were randomly assigned to the intervention group (IG) and 30 to the control group (CG). A total of 1020 fifth grade school children participated. The intervention strategy aimed to decrease the energy content of school breakfasts and include fruits and vegetables, as well as increase physical activity and the consumption of water during the time spent at school. The strategy was implemented over a 6-month period.ResultsThe estimated probability (EP) of obesity between baseline and the final stage for the IG decreased 1% (Initial EP = 11.8%, 95%CI 9.0, 15.2, final EP = 10.8, 95%CI 8.4, 13.) For the CG, the probability increased 0.9% (baseline EP = 10.6%; 95%CI 8.1, 13.7; final EP = 11.5, 95%CI 9.0, 14.6). The interaction between the intervention and the stage is the average odd time corrected treatment effect, which is statistically significant (p = 0.01) (OR = 0.68, 95%CI 0.52, 091).This represents the interaction between intervention and stage, which is highly significant (p = 0.01) (OR = 0.68; 95%CI 0.52, 091). In addition, girls had a protective effect on obesity (OR = 0.56; 95%CI 0.39, 0.80).ConclusionsThe intervention strategy is effective in maintaining the BMI of school children.

Objective: to estimate energy, nutrient intake and diet adequacy in preschool-aged children based on data from the Mexican National Health and Nutrition Survey 2012.Material and methods: dietary data in children < 5 years (n = 1,212) collected through a Semi-quantitative Food Frequency Questionnaire (SFFQ) were analyzed. Energy and daily nutrient intakes and adequacies were calculated comparing by sociodemographic characteristics.Results: median daily energy intake was 1,252 kcal (adequacy 104%). Adequacies above 100% were observed for calcium, zinc, vitamin C, folate, vitamin B12, vitamin A and median of saturated fat. Low percent adequacies were observed for fiber, iron, polyunsaturated fat and vitamin D. Intakes were lower in the southern region compared to other regions. Most intakes and adequacies were higher in urban compared to rural areas, but fiber had the opposite trend. Indigenous children had low intakes and percent adequacies.Conclusions: risks of dietary deficiencies and excess are present in Mexican preschool-aged children, with marked differences across sociodemographicstrata.

the FI in the household and the low dietary diversity seem to be strongly associated in women of childbearing age and this relationship is higher in those beneficiaries of the PAL SIN-HAMBRE scheme.

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Introduction: Validating health-education materials prevents the dissemination of erroneous messages and enhances the effectiveness of health-promotion initiatives. Objective: To describe the validation process for five educational materials pertaining to an online course on the promotion of water consumption among Mexican adolescents. Methodology: One group of 13-15 experts (technical validation) and another of 13-39 adolescents (population validation) reviewed three infographs and two videos using digital tools. Five criteria were established for the evaluation: appeal, clarity, identification, acceptance and inducement to action. A performance index was developed based on two categories: strong or weak compliance with each criterion. Successful compliance was determined when 70% or more of responses fell within the strong-compliance category. Results: Between 80% and 100% of the experts and adolescents rated all materials in the strong-compliance category for appeal, acceptance, clarity and inducement to action. For identification, however, the experts accorded the three infographs low scores, with similar results obtained from the adolescents for the three infographs and one video. Conclusions: Validation of the course materials allowed for identifying their strengths and weaknesses, as well as for ascertaining their usefulness in promoting water consumption among Mexican adolescents.