Why do bananas get sweeter as they ripen?

Fruits disperse their seeds when animals eat them. By suddenly increasing the sugar content, plants encourage animals to selectively eat the fruits with mature seeds that have developed the protective coatings they will need to survive passage through the digestive system.

3rd October 2013

Asked by: Alison Shields, Buckinghamshire

Fruits disperse their seeds when animals eat them. By suddenly increasing the sugar content, plants encourage animals to selectively eat the fruits with mature seeds that have developed the protective coatings they will need to survive passage through the digestive system. Commercial bananas don’t actually have seeds, but the ripening process remains.