MET-Rx Big 100 Colossal is a meal replacement bar that provides the on-the-go nutrition you need to help fuel your active lifestyle.* The MET-Rx Big 100 Colossal value pack contains four bars, and each tasty bar has 31 grams of protein and features METAMYOSYN, to give you the nutrition you require both in and out of the gym.* In addition, each bar has vitamins for energy metabolism and antioxidant support. MET-Rx Big 100 Colossal meal replacement is a delicious, naturally flavored meal replacement bar that aids you in your journey to achieve your fitness goals.* *Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake.