weight, microbiology

Millions of measurements from 23 people who consumed extra calories every day for a month reveal changes in proteins, metabolites, and gut microbiota that accompany shifts in body mass.

Obesity-associated microbiome composition can persist after weight loss, affecting the exchange of metabolites between a mouse and its resident bugs, researchers report.

Post-publication peer review prompts the authors to clarify the ages of mice used in their experiments and share additional data.

Microbes affect weight loss; dozens of cancer-linked genes identified; a climate change scientists speaks out about personal attacks; isolation among elderly linked to death