- "You're supporting the local economy"
- "It's fresher"
- "Less fuel has been used transporting it"
With the statement "local food is better" without any further specification, isn't one implying that the food grown non-locally to you (but locally to someone else) is inferior? If you're in New York, are you saying that the food in Tennessee isn't as good as the food grown 15 miles from you? Why shouldn't someone be able to want the best quality food product no matter where it originates from?
When marketing a product, food or otherwise, you don't want to alienate potential customers because a message used was not clear or perhaps offended because you didn't provide context to allow the customer to understand why you used that language.