In the above title, 'nutrition' is intended to mean the nutrients predominant in milk. (I'm not a biochemist; so I wrote this vaguely.)
The Dietitians of Canada assert that everybody of ages 19-50 need 1000 mg of Calcium daily. Please omit all those foods (eg these)
from which the quantity needed to satisfy the Recommended Daily Allowance,
cannot be productively consumed.
It's unrealistic to eat daily 5 cups of collards, kale, yogurt; or 10 cups of turnip, etc...
[Source:] But there has been this general belief that we need to consume a lot of milk because that will prevent osteoporosis and fractures. Yet studies that have looked at milk and dairy consumption do not show that people who drink more cow’s milk have lower fracture risk.”
“Humans have no nutritional requirement for animal milk, an evolutionarily recent addition to the diet,” Willett and his co-author, David Ludwig, of Boston Children’s Hospital, wrote in an article published last September in the journal, JAMA Pediatrics.
Footnote: My fears of charlatanism and pseudoscience oblige me to include the postnomials, but sorry if they're excessive.