[header] How to avoid cramps while running [title] Do not run on a full stomach. [step] If you drink or eat too much before running, you will be more likely to experience cramps during your run. You can eat just a small, healthy snack (no more than 200 calories) about one hour before you run to provide a little extra energy. 
A granola bar, half of a peanut butter and jelly sandwich, a few slices of apple, or a banana are good options. After eating a larger meal, waiting two to four hours before running may help prevent cramping.