Although fruit is healthy it may not always be the best thing for you when it comes to snacking and your lunch at work. Eating a meal or snack of mostly carbs will give you a hefty boost of energy right away, but it will also fade quickly and leave you feeling fatigued and drained. Eating protein and a little fat at meals along with a few carbs will slow down the digestion and even out the energy boost for a more productive and better feeling afternoon. Good choices include veggies and fish (or chicken) for lunch, and maybe an apple with cheese for a snack.