I just started working out again heavily, but I don't know if I should drink protein shakes. I'll give you my routine and my diet, you let me know what you think . Routine - 5 day switch, HIIT Monday - chest Tuesday - shoulders Wednesday - biceps/triceps Thursday - off Friday - back Saturday - legs Sunday - off This is what I eat normally: Breakfast @ 8-9am: 10+10 Trader Joe's Cereal, 10 grams fiber, 10 grams protein (soy), banana, apple Lunch @ 12:30pm: regular turkey avocado from Togo's or something else remotely healthy (I'm trying to get in the habit of making my own sandwiches to take to school with me) Pre-workout ~4-6pm: sandwich, banana Start workout anywhere between 5-7pm, workout for 45 minutes or so and then do 20-30 minutes of cardio Post-workout ~6-8pm: sandwich or tuna on crackers + gatorade 30-45 minutes later I'll eat another small meal of either a sandwich or tuna I drink about 84 fl oz. of water per day (5 water bottles) including one during my workout. Should I start drinking protein shakes and if so, when?