All articles tagged with #protein restriction
A comprehensive review of 350+ studies links lower protein intake to healthier aging and possible lifespan extension by boosting metabolism and the hormone FGF21; amino acids such as methionine, isoleucine, and valine may drive these effects, though protein remains essential for muscle and certain groups, suggesting more personalized protein guidelines rather than a universal high-protein approach.
A study identifies a specific hindbrain neuron population (NTS-KLB) that directly responds to the liver hormone FGF21 to orchestrate changes in food intake, food choice, and energy expenditure during dietary protein restriction, challenging the idea that metabolism is controlled mainly by the hypothalamus and suggesting targeted brain circuits could improve FGF21-based obesity and diabetes therapies.
Rutgers-led scientists in Science Advances show that in mice with liver impairment, reducing dietary protein slowed liver tumor growth and extended survival. By impairing ammonia disposal, ammonia increased and was redirected into amino acids and nucleotides that tumors use for growth, suggesting ammonia metabolism fuels cancer in diseased livers. The findings imply that a low-protein diet could lower liver cancer risk or progression for people with liver disease—but doctors caution against self-prescribing such diets, since protein also supports strength during treatment and liver function varies. More research is needed to translate to humans.