The Claim

In children and adolescents with overweight or obesity, face-to-face, family-engaged combined diet and physical activity interventions result in the most consistent improvements in BMI and BMI-z scores at 6 months, with effects typically attenuating within 6–12 months after program cessation in the absence of maintenance support.

Source: Combined diet and physical activity effects on health-related outcomes in people with overweight or obesity: an overview of systematic reviews

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
47score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Description
1 study reviewed
In plain English

In children and adolescents with overweight or obesity, structured programs that involve families and combine diet and physical activity lead to the most consistent reductions in BMI and BMI-z scores at 6 months, but these reductions decrease within 6 to 12 months after the program ends if no ongoing support is provided.

See the scientific wording

In children and adolescents with overweight or obesity, face-to-face, family-engaged combined diet and physical activity interventions produce the most consistent improvements in BMI and BMI-z scores at 6 months, but effects typically attenuate within 6–12 months after program cessation without maintenance support.

Why this might work

When children stop eating healthier and moving more, their bodies burn less energy and store more fat, causing weight to go back up.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Combined diet and physical activity effects on health-related outcomes in people with overweight or obesity: an overview of systematic reviews

    When kids with extra weight join programs that help them eat better and move more, with their families involved, their weight improves after six months—but if the program stops and no one keeps helping them, the improvement usually goes away within a year. The study confirms this pattern.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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