Low-carb diets reveal no adverse renal effects

The US National Institutes of Health-funded study of more than 300 US adults, who were obese but without serious medical illness, compared outcomes among participants assigned to a low-carb, high-protein diet versus a low-fat weight loss diet followed for two years.

The low-carb diet was not associated with harmful effects on renal filtration (GFR), albuminuria or fluid and electrolyte balance.

Concerns had been raised following evidence suggesting protein-rich diets may