Need a quick pick-me up? Here are my favorite healthy snacks for sustainable energy and battling the afternoon slump. These healthy picks are all plant-based, gluten-free, dairy-free, and sugar-free. In other words, they’re all-natural bites that don’t contain any of the anti-nutrients that rob your body of energy and decrease your ability to concentrate. Here are the best things to eat to keep your mind sharp and brilliant, pronto.