The comment stating Protein Bars are as bad as candy bars is sadly accurate, a generalization, but accurate. Literally if you add 30% of a chocolate bars weight in whey powder to the chocolate bar you have a protein bar in most cases. Unless you're making your own with seeds, nuts, P.B., honey, albumin powder, ground up Vitakick or equivalent, and some Vege-powder, you might as well buy a mars bar and dip it your protein shake powder.
Just my 2 cents as a Pastry Chef, who makes these things.