1. Basic principles of diet for 5-month-old babies When formulating recipes for 5-month-old babies, the following basic principles need to be followed: 1. Use breast milk or formula milk as the main food, and gradually introduce complementary foods; 2. When introducing complementary foods, Start with a single vegetable or fruit and gradually increase the variety and quality; 3. The food should be fresh, clean, easy to digest, and free of chemicals such as additives and preservatives; 4. The food should be chopped into small pieces or pureed so that Baby swallows and digests. 2. The nutritional needs of a 5-month-old baby are 5