Possum Eatin Time Association.
Another possiblity is:
People for the Ethical treatment of alka-seltzer
You throw it in the cup, it is torn apart by the hungry piranha that is Oxygen, and a person drinks it. Is there any crueller death? (I can think of one, drowning in a giant tub of alka-seltzer. That stuff HURTS when it goes up your nose...)
I think some of these people don't realize that the Human body is designed as an omnivore. If they don't want to eat meat, that's fine, but to actually try to say it's healthier is ridiculous- In order to get the same nutrition using only vegetables as a meal containing meats requires a lot of planning and knowledge about the nutritional value of plants.
And of course as you've said mroilfield they are definitely going off-track with what they believe. People might mistake it for a same-sex rally...