Answer:
He needs to take Carbohydrate load for storage of glycogen in the muscles so that enough reserves will be available when the amount present is used up during the long race.
CHO in controlled amount should be taken. 4g of CHO per body weight. Rice, oatmeal,pancakes,bread with yogurt should be taken.They are very easy to digest.The goal is to load the body with enough CHO to be converted to glycogen the following day.
Step-by-step explanation: