The Claim
In resistance-trained men, a protein intake of up to 3.32 g/kg/day for one year has no adverse effect on serum markers of kidney function, including blood urea nitrogen, creatinine, and estimated glomerular filtration rate.
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 men who regularly lift weights, consuming up to 3.32 grams of protein per kilogram of body weight daily for one year does not change blood markers of kidney function, including urea nitrogen, creatinine, and estimated glomerular filtration rate.
See the scientific wording
In resistance-trained men, protein intake up to 3.32 g/kg/day for one year does not adversely affect serum markers of kidney function, including blood urea nitrogen, creatinine, and estimated glomerular filtration rate.
When a person eats a lot of protein, the body breaks it down into waste products like urea and creatinine. The kidneys filter these substances out of the blood and remove them in urine. The kidneys adjust how much they filter based on how much waste is present, and they do not get damaged by this increased workload.
What the research says
1 studyMen who lift weights and ate a lot of protein — over 3 times the normal amount — for a whole year had no signs of kidney damage in their blood tests. So, eating that much protein didn’t hurt their kidneys.
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.