Most people seem to have not noticed that their hunger and thirst stops increasing/ fading to red in creative mode. You can't demo that aspect of the game in that mode. Some are trying and getting confused. You can make yourself hungry and thirsty by eating burnt food. It also damages you.
However unlike minecraft you don't slowly heal and gain satiation over time in creative.
This is not a clone of mindcraft and should not be.
PS. If you're looking for melons get out of fly mode and slow down. Watching 6 gamers in a row on youtube zoom past them is just painful. And yes I'm one of the six.