Source: Talking to ALLAH Blog
There are duas to be said before and after you eat or drink but this is one easy dua you can learn to say after you drink milk. We all drink milk everyday, alhamdullilah so here's the dua:
Allahumma barik lana fihi wa zidna minhu
This is a small dua so take a picture of it in your phone so it will be available to you every time.
