Ustun and colleagues’ research boosts our understanding of human sensory systems (and confirms that kale is vile). They report that “The diet of pregnant women exposes fetuses to a variety of flavours consisting of compound sensations involving smell, taste, and chemesthesis. The effects of such prenatal flavor exposure on chemosensory development have so far been measured only postnatally in human infants. Here, we report the first direct evidence of human fetal responsiveness to flavors transferred via maternal consumption of a…