Nothing like shock value to get a message across.

In new print and video ads for People for the Ethical Treatment of Animals (PETA), Alicia Silverstone bares all -- lots of revealing skin shots as she exits a pool (or reclines poolside, in the print version). 

Silverstone is a longtime vegetarian advocate. “I wasn’t always a vegetarian, but I’ve always loved animals,” the actress said in a statement. “Physically the effect [of going veggie] has been amazing. Once I went vegan, I lost the weight.”

Remember when Silverstone's healthy body weight (though not so by industry standards, and tehre was the rub) was the talk of the town? Here, Silverstone is saying she's vegan, which is even more hardcore than vegetarianism. I know for myself that being a vegan would be difficult. I am a vegetarian (I eat eggs and cheese, though not gelatin-based products). I would really miss cheese -- it's my favorite food. Though most any food item these days has a vegan substitute -- vegan bacon, vegan cheese, etc. I personally just don't like foods that "simulate" other foods. In addition to my not wishing to contribute to animal cruelty, I don't like meat because of the texture and the taste, so I am not interested in eating anything that is going to simulate that taste.

But not eating meat or seafood is a healthy and caring choice as well, and, as Alicia contends in the 30-second spot, gives you more energy.

Alicia looks gorgeous, by the way! Brava to her for being cool and confident and socially aware!

The TV ad will air on Food Network, Lifetime and E! channels. Click here for more info.

~Jessica