Some people are okay with waiting an hour, some people prefer to wait a few hours before their run. Everyone is different so it’s important to do what is best for you.
Charlotte says: “The main factors to consider is the type of run you plan to do and what you have eaten. After a meal you’d tend to wait longer before you run, a few hours, whereas after a snack you could run say an hour later. Experiment and see how you feel running at different lengths of time after you’ve eaten.”