The Claim

Among Japanese adults with diabetic kidney disease and an estimated glomerular filtration rate (eGFR) below 45 mL/min/1.73m², a low-carbohydrate diet with protein intake of 1.2 g/kg/day is associated with a similar rate of eGFR decline over four years compared to an energy-restricted diet with protein intake of 1.0 g/kg/day.

Source: Renal function trajectories of Japanese adults with diabetic kidney disease on different diet therapies including energy-restricted and low-carbohydrate diets: a retrospective cohort study

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
61score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

In Japanese adults with advanced diabetic kidney disease, consuming 1.2 grams of protein per kilogram of body weight per day on a low-carbohydrate diet results in the same rate of kidney function decline over four years as consuming 1.0 grams of protein per kilogram per day on an energy-restricted diet.

See the scientific wording

Among Japanese adults with diabetic kidney disease and an estimated glomerular filtration rate (eGFR) below 45 mL/min/1.73m², a low-carbohydrate diet with protein intake of 1.2 g/kg/day is associated with a similar rate of eGFR decline over four years compared to an energy-restricted diet with protein intake of 1.0 g/kg/day, suggesting that higher protein intake within this range does not accelerate kidney function decline in this population.

Why this might work

When people eat more protein but stay within a normal range, their kidneys adjust how they filter blood without getting damaged. The pressure inside the filtering units stays steady, and the cells that handle waste don’t get overloaded, so kidney function doesn’t decline faster.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Renal function trajectories of Japanese adults with diabetic kidney disease on different diet therapies including energy-restricted and low-carbohydrate diets: a retrospective cohort study

    In people with diabetic kidney disease, eating more protein (1.2g per kg of body weight) on a low-carb diet didn’t make their kidneys get worse faster than eating less protein (1.0g per kg) on a lower-calorie diet. So, higher protein at these levels doesn’t seem to harm their kidneys over four years.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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