A three-week-old baby makes a “laughter face” in response to being exposed to the smell of carrot. The infant’s mother had taken carrot capsules while the baby was in the womb.

A three-and-half-week-old baby makes a “cry face” in response to being exposed to the smell of carrot. The infant’s mother had taken kale capsules while the baby was in the womb.

Toddlers may be more likely to eat their greens if their mothers consumed vegetables during the later stages of pregnancy, ...