my son is now 13 months old, we hav very little money and buyin baby powder is provin to expensive for us. do u think its ok to start him on cows milk? i no it has to b full fat milk but how do i go about it. do i just replace his feeds strate away and how much should i give him, he normally has 8 oz of baby milk should it b the same as that? i no this is long but can ne1 help??