Is there such a thing as a pre-workout nutrition plan?
Certainly, and following a correct one will yield you great results than either exercising on an empty stomach or one filled with the incorrect food.
Actually, a correct pre-workout nutrition plan will be one that can supply quick energy sources, mostly carbohydrates, that can preserve your energy reserves, and also able to provide added blood flow to the muscle tissue.
The Pre-Workout Essentials: Carbs and Proteins
Carbs
When you work out for periods longer than 30 minutes, you start using up your energy reserves. These energy reserves are merely glycogen, it is the sugar stored in the liver and muscles. Exercising will burn your stored energy quickly, and it can’t use the oxygen kept in the fat deposits as a fuel. Therefore the body needs to find sugar fast, and does so in the muscle tissue and from the blood. Research has proven that the response of net muscle protein synthesis to consumption of a protein solution immediately before resistance exercise is greater than when the solution is consumed after exercise. This is the reason for the consumption of protein before the workout.
So.... What should I have before a workout?
An excellent choice would be slow cooked oatmeal with a protein mix added or a brown rice and tuna dish. There are also many commercial drink mixes available with exact proportions of the carbs, sugar and protein you need plus added vitamins and minerals, and other additives.
You must see what works best for you. However, you should not be too full of food or drink in any case, before the workout!