What to eat before exercise? Scientific combination improves performance and recovery

The diet before exercise directly affects energy supply and exercise effects. A reasonable diet should be based onEasy to digest, moderate carbohydrates, low fatMainly, avoid high-fiber or high-fat foods that cause discomfort. The main content is divided into three parts:fast energy food(such as bananas, oats),protein supplement(like Greek yogurt) andMoisture and electrolyte balance(like coconut water). Special groups (such as diabetics) need to pay attention to blood sugar control.

1. Mainly carbohydrates, fast energy supply

Recommended intake 1-2 hours before exerciselow GI carbs, such as whole wheat bread and oatmeal, provide stable energy; if time is tight, optionalHigh GI foodsSuch as banana or energy gel to quickly replenish sugar. For example, tennis star Serena Williams often eats bananas with nut butter before matches. Avoid excessive amounts of refined sugar that can cause blood sugar fluctuations. Referring to the International Society of Sports Nutrition Guidelines, the recommended carbohydrate intake is:

2. Appropriate amount of protein to delay fatigue

Adding a small amount of protein (such as eggs, Greek yogurt) can reduce muscle breakdown, but excessive amounts can increase the burden on digestion. American Dietitian Association recommendsWithin 30 grams of protein before exercise, such as 200 grams of sugar-free yogurt with blueberries. Whey protein powder (such as Optimum Nutrition brand) is also a convenient option, but it needs to be consumed 30 minutes in advance.

3. Hydration and electrolytes cannot be ignored

Drink 500 ml of water 2 hours before exercise, combined with drinks containing sodium and potassium (such as coconut water or light salt water) to prevent dehydration. Marathon runner Kipchoge drinks an electrolyte-containing sports drink (such as Gatorade) before a race. Avoid drinking large amounts of water at once to avoid stomach upset.

Summary and Notes

Diet before exercise should be based onExercise intensity, personal physiqueAdjust. For light exercise, you can choose fruits + nuts; for high-intensity training, you need to increase the carbohydrate ratio. Avoid trying new foods to prevent gastrointestinal upset. People with special needs are advised to consult a nutritionist. For example, patients with diabetes can choose low-sugar energy bars (such as Quest brand).

Quote sources:
1. "International Society of Sports Nutrition (ISSN) 2021 Guidelines"
2. American Association of Dietitians (AND) Sports Nutrition Recommendations
3. Product reference: Optimum Nutrition whey protein, Gatorade sports drink, Quest energy bar