I guess vegans would be the equivalent of prime grass-fed cattle for the aliens, so make sure to drink heavily, abuse drugs, take lots of medicines, gain weight, and never excercise.
Farsight remote viewed underground alien bases and found torture chambers, including a half-eaten victim. The only thing left out was the actual serving of the meal.
All the weird stories about elites going to 'spirit cooking' parties, drinking blood, and torturing children are likely just aspects of cooking school for aliens.
"To Serve Man"