fd026161_in_Pros___Cons_at_sustevol_com__Cons
[Protein Source] Whey [Pros] Inexpensive, easy to flavor, mixes well, good-quality protein with full complement of essential amino acids [Where Found] A byproduct of cheese production [Cons] 
Absorbed more quickly than some other proteins, which may mean that all of it won't be used for growth and repair, especially if you don't consume it with other food to slow things down
Protein Pros & Cons at sustevol.com
Cons