Overview of Systematic Reviews of Health Interventions for the Prevention and Treatment of Overweight and Obesity in Children.

(1) Background: The importance of studying the health interventions used to prevent and treat overweight and obesity in school-aged children is imperative. This overview aimed to summarize systematic reviews that assess the effects of school-based, family, and mixed health interventions for preventing and treating overweight and obesity in school-aged children. (2) Methods: The Cochrane Collaboration methodology and PRISMA statement were followed. A search was conducted using terms adapted to 12 databases. Systematic reviews reporting interventions in children from six to 12 years old with an outcome related to preventing or treating obesity and overweight were included. Studies with pharmacological or surgical interventions and adolescents were excluded. (3) Results: A total of 15,226 registers were identified from databases and citation searching. Of those, ten systematic reviews published between 2013 and 2022 were included. After the overlap, 331 interventions for children between 6 and 12 years old were identified, and 61.6% involved physical activity and nutrition/diet intervention. Multicomponent intervention, combining physical activity with nutrition and behavioral change, school-based plus community-based interventions may be more effective in reducing overweight and obesity in children. (4) Conclusions: Plenty of interventions for childhood overweight and obesity aimed at prevention and treatment were identified, but there is a gap in the methodological quality preventing the establishment of a certain recommendation.

Design of a cluster-randomized trial of the effectiveness and cost-effectiveness of metformin on prevention of type 2 diabetes among prediabetic Mexican adults (the PRuDENTE initiative of Mexico City).

INTRODUCTION: Type 2 diabetes (T2D) is a global epidemic, and nations are struggling to implement effective healthcare strategies to reduce the burden. While efficacy studies demonstrate that metformin can reduce incident T2D by half among younger, obese adults with prediabetes, its real-world effectiveness are understudied, and its use for T2D prevention in primary care is low. We describe the design of a pragmatic trial to evaluate the incremental effectiveness of metformin, as an adjunct to a simple lifestyle counseling. METHODS: The "Prevención de la Diabetes con Ejercicio, Nutrición y Tratamiento" [Diabetes Prevention with Exercise, Nutrition and Treatment; PRuDENTE, (Spanish acronym)] is a cluster-randomized trial in Mexico City's public primary healthcare system. The study randomly assigns 51 clinics to deliver one of two interventions for 36 months: 1) lifestyle only; 2) lifestyle plus metformin, to 3060 patients ages 30-65 with impaired fasting glucose and obesity. The primary endpoint is incident T2D (fasting glucose ≥126 mg/dL, or HbA1c ≥6.5%). We will also measure a range of implementation-related process outcomes at the clinic-, clinician- and patient-levels to inform interpretations of effectiveness and enable efforts to refine, adapt, adopt and disseminate the model. We will also estimate the cost-effectiveness of metformin as an adjunct to lifestyle counseling in Mexico. DISCUSSION: Findings from this pragmatic trial will generate new translational knowledge in Mexico and beyond, both with respect to metformin's real-world effectiveness among an 'at-risk' population, and uncovering facilitators and barriers to the reach, adoption and implementation of metformin preventive therapy in public primary care settings. TRIAL REGISTRATION: This trial is registered at Clinicaltrials.gov (NCT03194009).

[Nutricia Code: nutrition and conflict of interest in academia]. / Código Nutricia: nutrición y conflicto de interés en la academia.

To combat malnutrition in all its forms, actions must be integrated from society as a whole. The main interest of the actors involved in these actions should be health. However, there are actors with conflict of interest that interfere in the design, planning, implementation and monitoring of public health nutrition policies. In order to mitigate the adverse effect that result from these conflicts, from evidence generation to the design and implementation of policies, this Code is proposed. It invites the nutrition and health community to adopt it, promote it and subscribe it, and to favor the advancement of actions and policies without industry interference to address the problem of malnutrition.

Para combatir la mala nutrición en todas sus formas es necesario integrar acciones desde la sociedad en su conjunto. El interés superior de los actores involucrados en generar estas acciones debe ser la salud. No obstante, existen actores con conflictos de interés que interfieren en el diseño, planeación, implementación y monitoreo de las políticas derivadas de dichas acciones. A fin de mitigar el efecto adverso que generan estos conflictos desde la etapa de generación de evidencia hasta el diseño e implementación de las políticas, se propone este código. Se invita a la comunidad de nutrición y salud a adoptarlo, promoverlo y sumarse al mismo, para favorecer el avance de las acciones y políticas necesarias sin interferencia de la industria y resolver el problema de la mala nutrición.

Código Nutricia: nutrición y conflicto de interés en la academia / Nutricia Code: nutrition and conflict of interest in academia

Resumen: Para combatir la mala nutrición en todas sus formas es necesario integrar acciones desde la sociedad en su conjunto. El interés superior de los actores involucrados en generar estas acciones debe ser la salud. No obstante, existen actores con conflictos de interés que interfieren en el diseño, planeación, implementación y monitoreo de las políticas derivadas de dichas acciones. A fin de mitigar el efecto adverso que generan estos conflictos desde la etapa de generación de evidencia hasta el diseño e implementación de las políticas, se propone este código. Se invita a la comunidad de nutrición y salud a adoptarlo, promoverlo y sumarse al mismo, para favorecer el avance de las acciones y políticas necesarias sin interferencia de la industria y resolver el problema de la mala nutrición.

Abstract: To combat malnutrition in all its forms, actions must be integrated from society as a whole. The main interest of the actors involved in these actions should be health. However, there are actors with conflict of interest that interfere in the design, planning, implementation and monitoring of public health nutrition policies. In order to mitigate the adverse effect that result from these conflicts, from evidence generation to the design and implementation of policies, this Code is proposed. It invites the nutrition and health community to adopt it, promote it and subscribe it, and to favor the advancement of actions and policies without industry interference to address the problem of malnutrition.