Step 1: Eat lightly and normally the week before the marathon.
Step 2: The day before your marathon, do a 3 minute, very-high-intensity speed workout in the morning. (For the reporter who wrote the article, that meant running two-plus all-out laps at the track.)
Step 3: Consume 12 grams of carbs for every kilo of lean body mass spread over the next 24 hours. That's a HUGE amount of carbs. (The reporter who wrote the article is a runner who weighed 150lbs. To get in this amount of carbs, he drank four 18-ounce cans of ABB Carboforce . He said ten 12-ounce bottles of the new Gatorade Carbohydrate Energy Formula would work as well too.)
• Carb-loading can cause some runners to experience digestive discomfort. The Mayo Clinic suggests avoiding or limiting some high-fiber foods (beans, bran and broccoli) one or two days before the raced.
• Carb-loading can also affect your blood sugar levels. The Mayo Clinic suggests consulting with a doctor or a registered dietitian before starting carb-loading, especially if you have diabetes, and especially if it's your first experience with carb-loading.