I have 2 BBs who took Enfamil Neosure 加營素 as they are preterm and have low birth weight. My son didn't like that milk since 3 months old but my daughter is OK for that. My doctor suggested me to add more water into the milk but he still didn't like it. I tried to mix the milk with other brand but still didn't work. He struggled a lot and screamed while drinking. I finally changed to A+ for my son and he like it very much and his appetite has improved. He have kept on gaining weight gradually. I think some BBs don't like the smell of Neosure as it has very strong smell. Hope my experience give you some ideas