Same reason as Heidi really - he struggled a little with the cows milk and developed a slight rash - he has sensitive skin. And rice milk is very nutritious as its made out of brown rice. However it is naturally low in fat which is why he also has two bottles of formula. I've slowly started making up that one bottle as half cows milk and half rice milk. But i think he knows the difference. Doesn't seem to drink as much when it's cows milk
