Some crude references, like giving birth and breast feeding, nothing over the top though.
Profanity
Mild
Mild language is used infrequently, such as "Damn" and "Hell". Anything stronger than the TV-PG can allow ("Fuck", "Shit", etc.) is bleeped out on TV. The show also commonly bleeps out non-swears (this is played for laughs).
The DVD releases are uncensored with all profanity intact.
Alcohol, Drugs & Smoking
None
Alcohol may be imbibed during the "Helping Hands" bit.