Scrote Milk
Where cow milk comes from a cow, seal milk from a seal, and goat milk from a goat, the origin of scrote milk is from deep within the cores of a man's ballsack. Also known as semen, cum, jizz, baby batter, nutter butter, etc. albeit with less of a nutritional nuance.
You look a little protein deficient. How about a nice, tall glass of scrote milk?