Ah yes, good point! Feeling a bit silly now... I'm blaming it on the heat!A choc bar would keep you fuller for longer than a yogurt because it's more solid than a yogurt.So it takes your digestive system longer to digest and pass it through.
I could easily eat several yogurts before feeling full but can only eat one choc bar.
Although, I feel more full after a yogurt than a choc bar. Can't really say I've ever really taken notice of how long for though.