There is a scene where a girl is standing in only underwear as a comparison to her weight before and after a certain time.

A couple is about to have kiss but is interrupted before doing so.

Some sexual dialogue

In the first episode, a girl is seen in the shower.

One teenage boy punches another teenage boy

A girl roundhouse kicks a teenage boy, knocking him down the stairs.

Mild swears throughout: B----, H---, D---, etc.

A character smokes

This show deals with some more mature themes (Bullying, dieting, etc) But overall is really mild compared to other TV-14 anime out there.