Met-Rx

MET-Rx is a pioneer in the sports nutrition industry, specializing in high-protein meal replacements and performance supplements. Founded in 1991 by anesthesiologist Dr. A. Scott Connelly, the brand was initially developed to prevent muscle wasting in critically ill patients before becoming a staple in the bodybuilding and athletic communities. The company is best known for its proprietary Metamyosyn protein blend, a combination of milk protein isolate, casein, and whey protein designed for prolonged amino acid release. Its product portfolio includes the popular Big 100 Colossal meal replacement bars, protein powders, and ready-to-drink shakes. Currently a brand under the Nestlé Health Science umbrella, MET-Rx continues to focus on muscle recovery and metabolic support for high-performance athletes.