“ Whole fruit!” says Jamba Juice, where you can “power up with clean energy” and “start drinking” your greens. “Smoothies with a purpose,” says Smoothie King, where you can choose from Fitness Blends, Slim Blends, and Wellness Blends, among others. Smoothies have a huge health halo. Do they deserve it? Even the best smoothie doesn’t hold a candle to a peach, a plum, carrots, or kale. Liquid calories don’t curb your appetite as well as fruits or vegetables that you chew. But some smoothies are 800-to-1,000-calorie sugar drinks, while others can rival a homemade blend of your favorite fruit and plain yogurt. Here’s how to see through the marketing schemes and scams.