Yes, that’s correct!
The first year of life breast milk and/or infant formula should be a baby’s main source of nutrients. Offering other milk sources such as cow’s milk can displace the breast milk or formula and thus result in a lack of nutritional intake. Cow’s milk is also a poor source of iron and contains proteins that are difficult for infants of this age to digest. However, using small amounts in some recipe preparations is not harmful to a healthy baby.