OK this may be a really stupid question.. Well I know it's a stupid question but I'm asking it…

OK this may be a really stupid question.. Well I know it's a stupid question but I'm asking it anyway 😂.. Was talking to my friend the other day and she mentioned that my little boy will be on cows milk by the time I go back to work, as I won't be able to breastfeed in the day.. What does cows milk actually mean? The milk you put in your cereal, or is there a special formula you give them? 😂🤦🏽‍♀️