i remember reading a thing about vitamin C and steaks. it's there, and it seems to be more bioavailable actually. i dunno about cow's milk but certainly sheep and goat milk both contain loads of vitamin c and fibre.

so long as you are lactose tolerant and not allergic to casein you could literally live off ruminant milk.

the thing i've discovered is that you can even gain muscle quite rapidly even at my near-middle age, the fats and other nutrients seem to be smoothing out and making my skin more elastic. and it's not even raw milk, mostly i'm on UHT, cos that's all i can get.