My DS2 is turning 1yrs old in about 1 week. Hes has been on formula since stopping breastfeeding a month or so ago. We have just run out of formula, so I just gave him cows milk today, intending on running out to buy formula tonight.

BUT now I am wondering if there is any reason for him to still be getting formula, or should I move him onto plain old cows milk?

Any reasons why one would be more benefical over the other, or does it even really matter at this age?