I'll echo the statements of others. Provided you get enough protein I don't think it's going to make a substantial difference. In fact I used to be a big believer in the "real food is best" school of thought. But recently I compared the results of eating 7-8 real meals vs. 7-8 servings of 50g of whey a day(which many say is pointless due to the fact that whey is a fast acting protein) along with some fruit and nuts and I saw almost no difference in my lbm gains.