Sun Run nutrition: Should you be drinking a sport drink?

A sport drink is beneficial anytime you are doing heavy exercise for more than 60-75 min, especially in a hot and humid weather as this will help prevent dehydration and cramping.
When it comes to the Sun Run training, if running/ walking sub 1 hour, then water should be your fluid of choice for hydration. You may find a sport drink useful the day of the Sun Run particularly if you had breakfast 2-3 h prior to the start and beginning to feel sluggish as you are running.
The table below outlines