1, formula can eat until how many years old? In principle, you can eat up to 3 years old, and if conditions allow, you can eat up to 6 years old. Note: It does not mean that as long as you eat formula, do not eat. For babies over 1 year old, meals should be the main focus. 2, the brand of formula: varies from person to person, no special recommendation. 3.Formula brewing: (1) Concentration: Brewed in accordance with the ratio given. Too thick: thirst, constipation, high blood sodium, azotemia. Too light: malnutrition. (2) Type of water: Boiled tap water is recommended, avoid mineral water, pure water, softened water, etc. (4) Dairy drinks are beverages that taste good, but are not nutritious enough to replace formula milk. 5, yogurt is a product of pure milk and probiotics, protein, fat and other nutrients content is not lower than pure milk, 3 water or more baby drinking is beneficial. However, it should not be over-referenced, drinking too much, but inhibit the growth of normal intestinal flora. In addition, yogurt is best consumed 30min~2h after meals; after taking it out of the refrigerator, it should be left at room temperature for more than 30 minutes to avoid gastrointestinal discomfort of babies caused by overcooling. 6.How to eat fruits? (1) Eat fruits in season. (2) A maximum of 2 to 3 kinds a day, can be changed every day. (3) dry stool: bananas, oranges, pears, dragon fruit; thin stool: cinnamon, lychee, steamed apples.