What should a prerace meal ideally consist of in terms of carbohydrate intake?

The ideal prerace meal should consist of carbohydrate intake at a level of 1–2 grams of carbohydrates per kilogram of body weight. This range is generally recommended to ensure that the athlete has sufficient glycogen stored in the muscles and liver, which is crucial for optimal performance during endurance events like races.

Carbohydrates are the primary energy source for running, and consuming them in this amount helps maximize glycogen stores without causing gastrointestinal distress, which can occur if too many carbohydrates are consumed right before a race. This balance allows runners to maintain energy levels, enhance endurance, and potentially improve overall performance during the race.

The other options suggest either insufficient or excessive carbohydrate amounts for a prerace meal. Insufficient intake, like that in the first option, would not adequately supply energy stores, while larger amounts, as suggested in the fourth option, could lead to discomfort and slower digestion right before the race. Thus, 1–2 grams of carbohydrates per kilogram is considered the optimal range for most runners preparing for race day.