Carbohydrates. Carbohydrates are the most important nutrient you can consume to provide energy before a football game. Common carbohydrate foods include pasta, potatoes, cereals and bagels. game lasts for 48 to 60 minutes, but most plays require quick bursts of high-intensity effort. Proper pre-game nutrition can provide you with the energy you need to take on the challenges of game day. Knowing what, how much and when you should eat can give you an edge during competition.