I will be going to Portugal for 4 weeks this summer and my dd will be 13 months old. My dilemma is that the milk in portugal can be a bit dodgey so do not want dd to be drinking it. Only solution I can think of is to take formula milk with me for her to drink while there, but how much do I need to take? Dd is nearly 8mo now, will she be drinking the same amount as she does now or more?