The principle of healthy eating: 1 reasonable collocation with protein 2. Avoid eating at midnight. Eat less and eat more. Eat on time. Chew slowly. Drink water. Eat fresh fruits and vegetables. Eat natural food. The basic principles of a healthy diet are: eat well at breakfast, eat well at lunch and eat less at dinner. (1) Eat some cereals (such as wheat, corn and oats) with low fat, low salt and high dietary fiber for breakfast, plus fruits, vegetables (such as tomatoes, apples and oranges), milk and a small amount of meat and eggs. (2) Lunch is a very important meal in a day. These six foods can make your lunch more nutritious ...-broccoli, fish, onions, tofu, cabbage, fresh fruits and vegetables. (3) Choose foods rich in fiber and carbohydrates for dinner. Dinner should have more than two kinds of vegetables, such as cold spinach, which can increase vitamins and provide fiber. Pasta can be reduced in moderation, and some coarse grains can be eaten appropriately. You can eat some fish in small quantities. But if you have work to do at night, you need to eat more at dinner to replenish energy.