THE BEAUTY DETOX SOLUTION: Eat Your Way to Radiant Skin, Renewed Energy and the Body You've Always Wanted,

by Kimberly Snyder, CN. Harlequin, 247 pp., $16.95.

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Do humans have more in common with tigers? Or gorillas?

Well, especially on a bad day, you might feel more like the former. But Snyder, a clinical nutritionist you might have seen on the "Today" show, explains that, like the gorilla, we are herbivores -- designed to eat mostly plants, not prey.

Snyder -- yes, that's her on the cover, posed balancing an apple on her spine -- recommends an 80-20 ratio of alkaline foods (greens, fruits) to acidic (animal proteins, dairy). Eat fiber-rich alkaline foods first to fill up, she says.

THE SCOOP Celebs who blurb her diet, like actor Owen Wilson, enthuse over Snyder's Glowing Green Smoothie, blended organic greens and fruits.

THE BOTTOM LINE The diet itself may be too severe for most, but her ideas are intriguing, and some recipes -- like Watermelon Slush Smoothie -- sound yummy.