Naturalistic Fallacy or Appeal to Nature

The naturalistic fallacy as described by the philosopher G. E. Moore, is committing the error of concluding that something ought to be a certain way based on purely factual premises.
 
Example:
 
(1) It is natural to eat meat.
Therefore:
(2) Eating meat is good.
 

In this case a judgment of value has been made about eating meat based on a factual statement.