Could vitamin D, a key milk nutrient, affect how you age? (EurekAlert!) WASHINGTON, D.C. (November 8, 2007)- There is a new reason for the 76 million baby boomers to grab a glass of milk. Vitamin D, a key nutrient in milk, could have aging benefits linked to reduced inflammation, according to a new study published in the American Journal of Clinical Nutrition. [News Source]