Cold weather camping is much more harsh on your body than camping in warmer seasons, so it is important to place extra attention on taking care of yourself by staying warm and eating the right foods. If you are camping in cold weather, you should allow yourself an additional 1,000 calories per day in your diet. Winter camping meals and snacks should be very high in carbohydrates to fuel your body through the extreme cold and should also contain plenty of fats and proteins.