If you don't eat meat, go buy some. This way you'll never be tempted to unnecessarily mention[....]
If you don't eat meat and are able to refrain from relating this fact, then, uh, carry on.
TO CLARIFY: You don't have to eat it, of course. That's your call. But by eating meat, most attempts to proudly explain your aversion to the food will become so bogged down in qualifiers that they'll never escape your lips. This will be well worth the $19 investment.
Remember, these days, when you say "I don't eat meat", you're not just misleading people into believing that you spend all of your spare time growing organic vegetables; you're also signalling that you don't have a barbeque grill. This is a major social liability, especailly in Texas.