Sure, we recommend a high-protein, low-carb diet as the best way to get lean but if strength is your main concern, then carbs are a huge part of your game plan. In this case, most of your carbs should be coming from slow-digesting sources like sweet potatoes, brown rice and other whole-grain products. The key to having more strength for today’s workout is to make sure that you have a larger complex carbohydrate serving an hour before your workout – aim for 60-100 grams – along with 40 grams of whey protein. These carbs, Gunter says, will help you sustain your energy for the heavy work ahead. Skip this carb serving and you could find your workout losing steam midway through.