The Claim
A high-protein diet (2.3 g/kg body mass) during a 4-week, 40% caloric restriction does not prevent fat-free mass loss in resistance-trained individuals, regardless of training volume.
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 resistance-trained people reduce their calorie intake by 40% for four weeks and eat 2.3 grams of protein per kilogram of body weight, they still lose fat-free mass, no matter how much they train.
See the scientific wording
A high-protein diet (2.3 g/kg body mass) during a 4-week, 40% caloric restriction does not prevent fat-free mass loss in resistance-trained individuals, regardless of training volume.
When the body gets far fewer calories than it needs, it shifts into survival mode and breaks down muscle tissue for energy, no matter how much protein is eaten or how hard someone trains. The body stops building new muscle and starts tearing it down because it needs fuel.
What the research says
1 studyEven when super-fit people eat a lot of protein and lift weights while cutting calories drastically, they still lose muscle. So eating more protein doesn’t stop muscle loss when you’re eating way less food.
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.