Answer:
As a long distance runner you need glycogen stores and fat stores. Glycogen stores will help with the instant energy but the fat is the slow burning fuel that will give you the endurance. Of course you want your fat stores to come from healthy fat sources not McDonalds.
Your healthy fat stores will look like oils that are liquid at room temperature like olive oil, flax seed oil, krill oil. Fish is another great source of healthy fat. Make sure when choosing healthy fish sources you do not get any shell fish. Shrimp and lobster are one of America's top choices in the seafood world, although they are bottom feeders that ingest the toxicity of the ocean. Eating fish that thrive on kelp and healthy foods is what we want for ourselves. Salmon was my dinner tonight, with some spinach for iron and calcium, plus some rice for carbs. That is a well balanced meal for the long distance runners diet.
Keep yourself oxygenated too, because an oxygenated cell will provide the stamina for a run. Also virus's cannot survive in an oxygenated environment. Cancer and many other virus based diseases will disappear with products like DMOS and hydrogen peroxide. Look into the use of these products as well as chlorophyll will aid in the oxygenation of cells.