Effective prevention of obesity already during infancy, and again in childhood and even through adolescence will positively contrast adult obesity, and reduce the weight of obesity’s complications.
Preventive interventions have been usually focused on reinforcing the single individual to resist to the obesogenic environment, but in spite of the efforts this approach has not caused positive long term results.
Preventive strategies at national, community, and individual levels, need instead to involve all the stakeholders, using different strategies according to the target groups and the settings (home, school, working place), and using different approaches (education, economic incentives or sanctions, etc.).
Clear and realistic objectives have to be chosen to assess outcomes and each action has to be adapted to the local situation and evaluated in term of cost-health gain. In a multifaceted strategy, preventive actions can be organized as a “financial portfolio”, blending a mix of interventions with high and low cost that can cause low or high impact on the whole population and single individuals.