Microbiome

How Much Are Your Body Parts Worth?

We’re only talking legal sales here.

By Mallory Pickett

When a Double-Chocolate Brownie is Better for You Than Quinoa

A $299 microbiome test from DayTwo turns up some counterintuitive dietary advice.

By Richard Sprague

Brain Disorders May Start in the Gut — So Let’s Treat Them There

Dogfish sharks produce a remarkable antibacterial compound that might halt symptoms of Parkinson’s disease.

By Amanda Schaffer

What if Number 2 Makes You Number 1?

Elite athletes have a greater variety of bacteria in their guts than couch potatoes do, raising the prospect of “poop doping.”

By Elizabeth Preston

Skinny Genes

Anorexia may originate in your gut and your DNA, not in fashion magazines.

By Christina Farr