Health

Zero-calorie sweeteners on trial again

As a sugar substitute, zero-calorie sweeteners may reduce tooth decay and blood sugar spikes. Seven are approved worldwide and safe for humans—but does this mean they're healthy?

Genetics

Microbiome links diet to health

The composition of the human microbiome, a complex ecosystem of microorganisms, plays a crucial role in lifelong health. Little is known, however, about the detailed molecular mechanisms linking health status to the microbiome ...