Q: My baby is 9 months old. How much formula should she be having a day? She drinks four 220ml bottles and is not very interested in food.
A: A general guide for formula required at 9 months is 3 to 4 bottles 210 to 240ml a day. Fluid requirements are calculated according to the weight and age. At 6 months allow 150 to 200ml per kg body weight per day. At 9 months reduce to 120 to 150ml per kg of body weight per day. For example, a baby of 9 months weighing 8kg needs between 960 and 1200ml total fluid per day. But guidelines are guidelines only - babies are all different. At 8 to 9 months you can begin offering food before the milk feed. This usually leads to a gradual reduction in the amount of milk taken as food becomes more important. From this age you can introduce yoghurt and cheese. So when milk feeds reduce to three a day, these dairy products (plus milk or formula on cereal, in custard or white sauce with vegetables), help to provide protein and calcium needed.