The Claim
Among adults on a calorie-restricted diet, resistance training is associated with greater fat mass loss and preservation or increase in fat-free mass compared to aerobic exercise or no exercise.
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.
When adults lose weight by eating fewer calories, doing resistance training leads to more fat loss and less muscle loss than doing aerobic exercise or no exercise.
See the scientific wording
Among adults on a calorie-restricted diet, resistance training is associated with greater fat mass loss and preservation or increase in fat-free mass compared to aerobic exercise or no exercise, suggesting it promotes body recomposition during weight loss.
When someone lifts weights while eating fewer calories, the pulling force on muscles turns on signals that build more muscle tissue. More muscle means the body burns more calories at rest and pulls fat from deep inside the belly to use as fuel. This lets the person lose fat without losing muscle.
What the research says
1 studyStudy: Resistance training as a key strategy for high-quality weight loss in men and women
When people eat fewer calories, those who lift weights lose more fat and even gain a little muscle, while people who only do cardio or do nothing tend to lose muscle too. So lifting weights helps you get leaner without losing muscle.
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.