Hello Sasha! I agree that "moo free" means that the chocolate is free of any dairy products which are produced from cows milk. Cows make a "moo" sound so that is why they say "moo free" - a catchy and cute way of saying it. To eat dairy-free products is quite important for some people as dairy products contain "lactose" and not all people are able to digest lactose successfully. Thich causes bloating and discomfort, so being dairy-free is quite an important selling point. I hope that helps!

moo free is a (very nice) brand of dairy free chocolate. It is also vegan and gluten free. It is a clever brand name. I don't think the term is used for anything except their company and brand of chocolate.

It's just one way of saying "dairy-free". That is, does not contain milk.

Thank you, Shauna! Very good answer!

It's a joke. The sound "moo" is the sound the cow makes. So they are saying "Nothing from the cow. Not even the "moo"."