Note: To avoid performance declines, people attempting to lose weight while engaging in demanding athletic training should not reduce their calorie intakes by more than 10-20% (or by more than 500-1,000 calories per day). For good health, total fat intake should not fall below 15% of total calories.
Meal Contents & Timing for Very Active People
The Pre-Exercise Meal: Your individual reaction should be the primary factor that determines what, when and how much you eat prior to exercise. For many, eating before exercise enhances performance—especially during long exercise sessions that can exhaust glycogen reserves. Since most people find it difficult to exercise with a full stomach, you should allow plenty of time for digestion (about 3-4 hours before exercise) in order to get the energy benefits of a pre-exercise meal.