I can't imagine how 12 ounces of coffee in the morning would hurt the kid. coffee does not cause stunted growth! ha. but it is very important the kid gets all of their needs throughout the day, healthy food, healthy drinks, plenty of sleep, and exercise...;-)
No it perfectly fine. I drank coffee when I was real young and I'm 6ft 5in and my Bro was spoon feed coffee when he was just a baby and he's 6ft 6in coffee stunting your growth is not true. And if it is THANK GOD I already run in to things being so tall.