In Ayurveda the different versions of dairy are classified like everything else as being apropos to the different body types.
Here is roughly what I mean.
If a person gains weight easily, has slow digestion, has problems with oedema (liquid buildup) fatigue, poor digestion, then generally they would be well-advised to avoid dairy because it is heavy and can be difficult to digest.
If on the other hand, the person enjoys the milk and seems to have no difficulty digesting ie no bloating, tiredness etc. then the different dairy sources will come into play.
The physical appearance of the animal source is a rough guide as to which choice would be better. If you are light, lose weight easily, have a lot of energy, like the third guy from the left in the "Miracles",
then dairy from the heavier animal will be best because it will pacify the excesses in your body type.
If on the other hand you gain weight easily or are heavy set like the guy in this
"And Mama, they talk all around town say that
Papa had three outside children and another wife
And that ain't right"
then milk from a light animal such as a goat would be apropos.