There are teenage crushes throughout the series and some kissing in a few episodes. There are discussions on hormones and body changes from a 14 year old perspective. Two girls talk about another girl "waking up with a chest and becoming popular" in the pilot.

In the Halloween episode Lizzie dresses as a zombie as a prank. It is done in jest, but can be scary for younger viewers.

One character uses the term "sucks" to describe a less than ideal situation.

On the halloween episode, Lizzie becomes a zombie but, it's a prank. And it may scare some younger viewers.