The Claim
In healthy, young women, a high-protein, low-fat diet produces a significantly greater nitrogen balance (7.6 ± 0.9 gN/day) than a high-carbohydrate, low-fat diet (-0.4 ± 0.5 gN/day), indicating enhanced retention of dietary protein.
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 healthy young women, eating a diet high in protein and low in fat leads to a higher nitrogen balance than eating a diet high in carbohydrates and low in fat, meaning more dietary protein is retained in the body.
See the scientific wording
In healthy, young women, a high-protein, low-fat diet results in significantly greater nitrogen balance (7.6 ± 0.9 gN/day) compared to a high-carbohydrate, low-fat diet (-0.4 ± 0.5 gN/day), indicating enhanced retention of dietary protein.
When more protein is eaten, the body breaks down the extra amino acids, turns the waste into urea in the liver, and uses energy to build new proteins. This process traps nitrogen in the body instead of letting it leave, so more protein stays stored.
What the research says
1 studyWhen young women ate more protein and less fat, their bodies kept more protein than when they ate more carbs and less fat — the study measured this directly and found a big difference. It’s like their bodies held onto more protein when they ate more of it.
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.