10-month-old babies are definitely not able to drink pure milk for the following reasons: 1. 10-month-old babies have poor gastrointestinal digestive function and do not yet have the conditions to digest pure milk. 2. 10-month-old babies drinking pure milk may cause corresponding digestive symptoms, such as reduced appetite, nausea, vomiting, and in severe cases, abdominal pain, bloating, and even diarrhea. 3. 4, should drink with the age-appropriate infant formula, because it adds a variety of microelements, trace elements, micro-nutrients, and the composition of pure milk elements are not suitable for the needs of 10-month-old baby child.