MET-Rx Launches 44g Protein Shake, Taps John Cena for Ready-to-Drink Debut
New York – September 22, 2026 -- MET-Rx has entered the ready-to-drink protein category with the launch of its 44g High Protein Shake, now on shelves at Walmart, Walmart.com and Amazon for $3.47 per 14-ounce bottle.
The lineup comes in three flavors -- Strawberry Shortcake, Vanilla Milkshake and Chocolate Milkshake -- with each bottle containing 44 grams of protein, 6 grams of fiber, five key nutrients and up to 2,500 mg of electrolytes.
John Cena extends his multi-year role as brand ambassador
The launch builds on MET-Rx's recent Level-Up campaign, which features Cena in an animated, video-game-inspired format. "MET-Rx remains my go-to for recovery after any tough workout," Cena said, adding that the shake combines protein, fiber and electrolytes for recovery in an easy format.