The DNA molecule contains a lot of chemical structures that tell the ribosomes how to create new proteins (that have a lot of functions).
Plus, you can benefit from fat burning even after your run as your body keeps burning fat for 2 to 3 hours after finishing a run. If you want to shed a few pounds, make sure you only ingest liquids and maybe a little protein during that time frame. Training on an empty stomach.
Drinking plenty of water throughout the day helps the lining of your large intestines absorb water, which helps you go to the bathroom more comfortably. Try to avoid eating for at least 2-3 hours before a run and avoid drinking 1 hour before a run. This gives your stomach time to digest before hitting the road. Keep a food log. For a full week keep track of what you eat/drink, how long before a run you eat/drink, and what symptoms occur during running. Over time you'll come to notice trends (i.e. if you eat a salad for lunch you'll be good to go for a long run pre-dinner) and come to learn what your body likes and dislikes.