The fibre in fruit allows a signal to stop eating to be sent to the brain. The fibre doesn't make the sugar good, but you will stop eating when you're sated an

The fibre in fruit allows a signal to stop eating to be sent to the brain. The fibre doesn't make the sugar good, but you will stop eating when you're sated and so consume less sugar. No such signal is sent when drinking sugary drinks, so it's more likely you will consume more sugar.