Hi,
My 6mo has been exclusively breastfed and I have just introduced the bottle around 10 days ago, I've put Cow and gate , she usually has 2-4 oz at a time once or twice a day. She seems happy and healthy but has always has runny poo within 10-20 mins of having the formula. Should I switch formula or is this her body's reaction to something different going in for the first time? Please help!