Prebiotic sodas have become more popular in recent years, with a wave of new products promising gut health benefits and low-calorie enjoyment. According to a new analysis, however, many of these beverages contain relatively little prebiotic fiber content and more sugar than marketing claims might imply.

Lithium in drinking water is a widespread and persistent source of human exposure across Tribal communities in the Western United States, according to a new study. The findings document substantial regional variation in exposure and provide some of the strongest evidence to date that household drinking water is a major contributor to lithium levels measured in the body.

A new four-paper Series in The Lancet Public Health reflects a two-year collaboration among researchers at San Diego State University and the Johns Hopkins Bloomberg School of Public Health, the Global Network of Sex Work Projects (NSWP), and sex workers from diverse geographic settings. Developed through meaningful community partnership, the collection provides the most comprehensive synthesis of evidence on sex workers' health in more than a decade and offers a contemporary approach to inform future research, policy and practice.