OK, firstly protein shakes are a supplement. they are NOT required if you can eat a full diet, rich in protein. hence the term, supplementing. So, if your able to eat your required protein amount, from lean protein sources, then save your money and forget them. they will do no extra good. Remember, natural, lean proteins are extremely good for you because they not only provide the said macronutrient to rebuild your muscles, but provide other minerals or oils and hormones that help promote putting on muscle. Such as iron and testosterone from red meats like beef or omega and essential oils from fishes like tuna, mackerel, sardines etc. Full of vitamins and everything a growing boy needs. Dont forget milk! that stuff is purposely designed by nature to help build muscles and strong bones! some good tips here for your reading. http://stronglifts.com/nutrition-101-definite-beginner-guide-healthy-nutrition/ Your workout seems to be a little off too. A lot of your workout seems to be isolating certain muscles and then rotating days on/off for those sets of muscles. basically a 'Split'. Your just starting out, and i assume you want to put on even, balanced muscle mass. everything in its right place, and working in synch with the rest of your body... Right? well, if so, get yourself a workout comprising of compound exercises. Compound exercises will work multiple muscles at a time and are more efficient for a multitude of reasons. Doing bicep curls will not bulk you up, doing sit ups, will not get you a six pack, doing machine work will neglect supporting muscles, not working out your entire body will create a muscular imbalances, poor strength in ligaments and supporting tissues such as the rotor cuffs... the list goes on. So only to repeat what azzybish mentioned.. compounds. + full, rich diet. = Fitter, stronger, happier. oh, incase you wanted to skip all that for your answer? No, you dont need protein shakes. Just eat more natural protiens, eggs, fish, milks, lean cuts of beef / pork, chicken, turkey etc. Hope this helped a little bit! we really should get a progress thread for BT's bulkers / slimmers!