The three-day light diet should be based on personal situation, physical condition and doctor's advice. Before fasting for three days, it is recommended to consult a doctor to confirm whether the body is suitable for fasting, and to understand your physical condition and limitations to avoid physical discomfort or health problems. The following are some recipes that can be considered: Day 1: Breakfast: oatmeal or brown rice with a glass of juice or black tea. Lunch: Steamed or roasted chicken breast or cod, with mixed vegetable salad and fresh fruit. Dinner: scrambled eggs with vegetables, steamed or grilled salmon and mushroom soup. The next day: breakfast: strawberry and blueberry jam with whole wheat toast and a glass of low-fat milk or soybean milk. Lunch: Steamed or boiled prawns with green salad and a cup of yogurt. Dinner: lean beef, steamed or boiled fish and vegetable-rich braised dishes. Day 3: Breakfast: egg sandwich (including whole wheat bread, lettuce, tomato and eggs) with a glass of juice. Lunch: Roasted chicken breast, cauliflower and mashed potatoes. Dinner: Braised chicken wings and vegetable-rich stew. The above is for reference only, and the specific diet should be based on personal situation and doctor's advice. When fasting and eating lightly, you should also drink more water, pay attention to maintaining a balanced nutrition and reduce calorie and fat intake. If you feel unwell or have any health problems, you should consult your doctor in time.