The Claim
Among adults with overweight or obesity (BMI 27–46 kg/m²) enrolled in a 12-month, high-intensity behavioral weight loss program, 4:3 intermittent fasting (80% energy restriction on 3 nonconsecutive days per week) resulted in 2.89 kg greater weight loss than daily caloric restriction (34% daily deficit), with 58% achieving at least 5% weight loss compared to 47% in the daily restriction group.
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.
In adults with overweight or obesity following a 12-month behavioral weight loss program, intermittent fasting with 80% energy restriction on three nonconsecutive days per week led to 2.89 kg more weight loss than daily calorie restriction at 34% deficit, and 58% of participants lost at least 5% of their body weight compared to 47% in the daily restriction group.
See the scientific wording
Among adults with overweight or obesity (BMI 27–46 kg/m²) enrolled in a 12-month, high-intensity behavioral weight loss program, 4:3 intermittent fasting (80% energy restriction on 3 nonconsecutive days per week) resulted in 2.89 kg greater weight loss than daily caloric restriction (34% daily deficit), with 58% achieving at least 5% weight loss compared to 47% in the daily restriction group.
When people eat very little on certain days, their body switches to burning fat for energy, and their hunger signals drop, making it easier to eat less overall and lose more weight.
What the research says
1 studyStudy: The Effect of 4:3 Intermittent Fasting on Weight Loss at 12 Months
In a year-long study, people who ate very little on three days a week and ate normally the other four days lost a little more weight than those who ate fewer calories every day—both groups got the same coaching and exercise advice.
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.