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Trail mix
Most nutritionists will advise you to snack on a combination of carbs, protein, and fiber for sustained energy—and trail mix seems like a perfect example. But grocery store versions are often packed with not-so-nutritious add-ons: unhealthy foods like “yogurt”-covered raisins, deep-fried banana chips, sesame sticks, or salty nuts.
Make a healthy mix yourself with mainly nuts and seeds and a little high-cacao dark chocolate and dried fruit.