The Claim
In obese adults undergoing weight reduction programs, significant weight loss achieved within 20 weeks is not maintained beyond two years, regardless of program type, indicating a consistent pattern of weight regain across interventions.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Obese adults who lose a significant amount of weight within 20 weeks during a weight reduction program typically regain the weight and do not maintain the loss beyond two years, no matter what type of program they followed.
See the scientific wording
In obese adults undergoing weight reduction programs, significant weight loss achieved within 20 weeks is not maintained beyond two years, regardless of program type, indicating a consistent pattern of weight regain across interventions.
After weight loss, the body slows down metabolism, increases hunger signals, and reduces fullness signals to push energy intake back up and energy use back down, causing weight to return to its original level.
What the research says
1 studyStudy: Short-Term and Long-Term Effects of Weight Reduction Programs Offered at the Guthrie Clinic
When obese people lose weight quickly in the first few months of a diet program, they almost always gain it all back within two years — no matter which diet they tried. This study found that exact pattern.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.