The Best Juice to Boost Energy Instead of reaching for a coffee, try a green juice instead. "Chlorophyll, the green pigment in plants, helps oxygenate the blood, creating increased brain function and physical energy," says Judita Wignall, author of Going Raw (Quarry Books). Ingredients: 1 large cucumber 8 stalks celery Handful of kale Handful of spinach Handful of parsley 1/4 lemon with rind (if organic!) 1-inch piece of ginger cr: self.com