The Claim
In healthy, young women, a high-protein, low-fat diet increases fasting plasma urea nitrogen concentrations compared to a high-carbohydrate, low-fat diet.
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 results in higher levels of urea nitrogen in the blood after fasting compared to eating a diet high in carbohydrates and low in fat.
See the scientific wording
In healthy, young women, a high-protein, low-fat diet elevates fasting plasma urea nitrogen concentrations compared to a high-carbohydrate, low-fat diet, indicating increased protein breakdown and excretion.
When more protein is eaten, the body breaks down the extra amino acids in the liver, turns the nitrogen waste into ammonia, and then converts that ammonia into urea to be removed by the kidneys. This process produces more urea, which shows up as higher levels in the blood after fasting.
What the research says
1 studyWhen young women ate more protein and less carbs for a day, their blood showed higher levels of urea nitrogen the next morning — this means their bodies broke down more protein and got rid of the waste. The study directly measured this and found it to be true.
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.