is this right?

my friend had the audacity to tell me that I need to give my 11 months old cow's milk and at least 3 bottles worth a day the thing that bugs me is that she doesn't have a child her self and she was telling her friend who has two kids that I wasn't doing this and she apparently told she had to. not to mention the fact that she was insistent that if I don't do this my baby will have brittle bones and break one if I'm not careful I had said the she has yogurt and cheese regularly but that wasn't enough apparently is this true? and advice would be greatly appreciated thank you