The MET-Rx 44g protein shake is MET-Rx’s new ready-to-drink launch, delivering 44 grams of protein, 6 grams of fiber and up to 2,500 mg of electrolytes per bottle. Announced September 22, 2026, it comes in three flavors backed by ambassador John Cena, and is available now at Walmart and Amazon for $3.47.
MET-Rx 44g Protein Shake: What Was Announced
MET-Rx confirmed the launch in an official PR Newswire release on September 22, 2026, marking the brand’s first entry into the ready-to-drink (RTD) protein category after more than 30 years focused on powders and bars. The MET-Rx 44g High Protein Shake lineup includes three flavors:
- Strawberry Shortcake
- Vanilla Milkshake
- Chocolate Milkshake
Each 14-ounce bottle packs 44 grams of protein, 6 grams of fiber, five key nutrients and up to 2,500 mg of electrolytes, positioning it as both a protein source and a recovery drink. The shake is available now at Walmart, Walmart.com and Amazon at a suggested retail price of $3.47, with “additional retail expansion planned in the coming months,” according to the release.
The launch leans on MET-Rx’s multi-year partnership with John Cena, extending the brand’s “Level-Up” campaign into an animated, video-game-inspired content series. “MET-Rx remains my go-to for recovery after any tough workout,” Cena said in the release. “The new 44g shake packs high protein with fiber and electrolytes for recovery, making it easier than ever to get the protein and essential nutrients I need. Plus, they taste great!”
David Del Pozo, Chief Innovation Officer at 1440 Foods (MET-Rx’s parent company), added: “MET-Rx’s new RTD shake is a real step forward in how we help people meet their protein goals, pairing high-quality protein with added benefits like hydration support, all in one convenient bottle.”
If you’re tracking protein intake at home rather than grabbing a bottle, recipesncooking.com has several high-protein options worth bookmarking, including the High Protein Cottage Cheese Acai Bowl and the High Protein Edamame Crunch Salad.
Is This Common?
Yes — brand extensions into ready-to-drink protein are one of the fastest-growing moves in sports nutrition right now, as shelf-stable shakes increasingly compete with powders for convenience-driven shoppers. What’s less common is a 30-year powder-and-bar brand like MET-Rx making its first RTD entry this late, and doing so anchored by a single celebrity ambassador (Cena) across both the shake and its marketing campaign rather than a generic launch push. The $3.47 price point for a 44g-protein bottle is also positioned aggressively against premium RTD competitors.
Quick Questions
Where can I buy the MET-Rx 44g protein shake?
It’s available now at Walmart, Walmart.com and Amazon for a suggested retail price of $3.47 per 14-ounce bottle, with additional retailers expected in the coming months.
What flavors does the MET-Rx 44g protein shake come in?
Strawberry Shortcake, Vanilla Milkshake and Chocolate Milkshake.
How much protein and how many electrolytes are in each bottle?
44 grams of protein, 6 grams of fiber, five key nutrients and up to 2,500 mg of electrolytes per 14-ounce bottle.
Update Log
September 22, 2026: Article published based on MET-Rx’s official PR Newswire announcement.
