 and dairy. A lot of people are allergic to casein, but not allergic to lactal albumin. It's more common to be allergic to casein, which you would find predominantly in cheese, but less so in, say, buttermilk, which is pure whey. Then there's whey protein. Whey protein is very complete. It is rich in the branched-chain amino acids. It's a very complete protein. It's a protein that I use for my shakes.