Registered Dietitian, Nutritionist, and Freelance Writer
Pro to the question "Is Drinking Milk Healthy for Humans?"
"[M]ilk and dairy products are the main source of calcium in our diets, a critical mineral kids need to build strong bones, help muscles contract and transmit nerve impulses...
When it comes to milk, calcium is only the beginning. Milk is also a top source of high quality protein, with each cup delivering more protein than a large egg. Plus it provides eight other essential nutrients; including several kids don't get enough of like vitamin D and potassium.
For optimal health, serve up 2 cups a day for kids aged 2 to 4; 2½ cups for kids 4 to 8; and 3 cups for kids 9 and older. Just be sure to choose low-fat options like 1 percent or non-fat milk. These deliver all the nutrition of 2 percent or whole milk with a fraction of the total and saturated fat. That makes them healthier for kids' hearts and also lower in calories."
"How to Get Your Children to Drink Their Milk," eatright.org, Feb. 14, 2014
Experts Individuals with PhDs, MDs, or equivalent advanced degrees in fields relevant to milk. Also top-level government officials (such as foreign leaders, US presidents, Founding Fathers, Supreme Court Justices, members of legislative bodies, cabinet members, military leaders, etc.) with positions relevant to milk.