Biologically Appropriate Raw Food. It's a brand of pet food that offers a natural approach to the diet, which is supposedly healthier than traditional dry pet food.

I guess it requires inappropriate level of zeal to keep track of your pet's diet scrupulously, but there are people who believe it's worth it.

As for the acronym, I first encountered it on a dog conference a couple of weeks ago and can't stop thinking about it since. Who on earth would name a food brand BARF? Are they insane? Don't they know the word? Why? How? I almost forgot and look, a reminder!