Milk and sudden soaking diapers

ceramsey

So, perhaps this is merely a coincidence, but ever since we started DS on milk this week, he has been soaking through his diapers, especially at night. He already wears size 5 extra protection night diapers when he hasn't even hit the weight capacity of size 4 ( which he wears in baby dry during the day.) could it be possible that, for some reason the milk runs through him faster or pure coincidence? Tonight we gave him 4oz at dinner and then 4oz at bed 1.5hrs later in the hopes that he'd pee a little more before bed and not leak through tonight. We'll see I guess, but any thoughts?