>Researchers investigated eating habits in toddlers to teenagers and found that on average fussiness over food changed little from 16 months to 13 years old. There was a minor peak in pickiness at seven years, then a slight decline thereafter.

>When they looked into the drivers of fussy eating, DNA emerged as the dominant factor. Genetic variation in the population explained 60% of the differences in pickiness at 16 months, rising to 74% and more from three to 13 years old, the study found.