A link between eating red meat and heart disease has been known for a while, but just how eating a steak leads to atherosclerosis isn't quite clear, writes The Economist. Stanley Hazen from the Cleveland Clinic, though, says the effect might be mediated through the gut microbiome.

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A new study in JAMA finds that genetic tests might not be able to determine what diet is right for someone seeking to lose weight.

A genome-wide association study that linked common genetic variants to salivary gland carcinoma risk has been retracted, according to Retraction Watch.

Vampire bats' ability to live off blood is etched in their genomes and gut microbiomes, the Scientist reports.

In Genome Biology this week: peopling of the Sahara, epigenetic reprogramming analysis of liverwort, and more.