"Dr. John A. McDougall calls dairy foods “liquid meat” because they are as bad for you as the solid stuff. Loaded with fat and cholesterol, dairy products contribute to heart disease, cancer, stroke, diabetes, allergies, asthma, and even osteoporosis, the bone-weakening disease that the dairy industry pretends it prevents."
“There’s no reason to drink cow’s milk at any time in your life. It was designed for calves, not humans, and we should all stop drinking it today.” - Dr. Frank A. Oski, former director of pediatrics, Johns Hopkins University.
“Dairy foods are the most harmful of the traditional four food groups.”- Dr. John McDougall
“I sometimes challenge milk-drinkers by asking them if they would drink a glass of milk containing 1,000 pus cells. The average 12-ounce glass of milk in America contains 112,899,408 pus cells.” - Robert Cohen (The NotMilkMan)
“Billions of people on Earth who do not consume dairy products live healthy lives with a perfectly healthy calcium balance.” - Dr. Charles Attwood
[Quotes from here (URL also listed below). Check out: Milksucks, and "Milk Does a Body Good?" too. Excellent summaries of the issues too many vegetarians either avoid or don't know about. It was the pus cell count, btw, that pushed me over the tipping point to go vegan after vegetarian for 22+ years.]