restaurantMystery Diners · Season 6, Episode 12 · Aired June 23, 2014
Protein House
Las Vegas, Nevada
Still open. It kept its doors open after the show.
What happened after
Health-food chain with active locations at 9555 S Eastern Ave Ste 125 and 4965 Blue Diamond Rd, Las Vegas; both show current Yelp hours/reviews (dated into 2026).
What happened on the show
Larissa Reis and Andrew Bick were losing expensive protein powder at their Las Vegas health-food spot, with a manager and two baristas under suspicion. Charles Stiles sent mystery diners Kelli and Andy in as a barista and a customer. As aired, the manager had been ordering the baristas to short the smoothies so he could skim powder for himself and recruit customers to a personal training business with free food, while a barista bullied heavier guests toward salads. The confrontation has Larissa firing the manager and warning the barista, the manager blaming Stiles for setting him up. Because Mystery Diners was later accused of scripting its confrontations, this supplement-skimming sting is best read as broadcast rather than as documented event.
After the cameras left
Protein House is open, a going health-food brand rather than a rescued one. It runs active Las Vegas locations, on South Eastern Avenue and Blue Diamond Road, both showing current hours and reviews into 2026 in our pass. The show did not specify which was filmed, but both are open, so the status holds regardless. A brand operating multiple current locations was never the fragile business a sting implies. It kept going on its own footing, which is the quiet truth behind this survivor.
Sources
Confidence: high. Last checked 2026-07-19.