The body's protein intake plays a big role in the muscle-building process. Protein shakes or supplements are a great addition to your diet TST Fuel but should not be the only source of protein you get. The best times to consume these supplements is right after working out and before bed. If you're looking to lose weight TST Fuel restrict yourself to one shake per day. If you are looking to build both mass and muscle TST Fuel drink up to three per day.