You can try Pedisure or Soy Milk. Try regular milk with chocolate Ovaltine in it. Sometimes children will not drink regular milk but will drink it with chocolate flavoring in it. They have yogurt drinks on the market that is like a thick drink which children love that can be used too. If she will not accept milk then give her on a daily basis yogurts, cheese, puddings, and ice cream which are all dairy substitutes. Hope that helped you.