COEUR d’ALENE — Tom Lunneborg, chief operating officer of Genius Gourmet, calls the North Idaho company’s clear sparkling protein drink “one of a kind.”

Consumers nationwide seem to agree.

The protein drinks are selling out in many of Costco’s 634 locations, including the Coeur d’Alene warehouse.

They’ve also been a trending topic on social media platforms X and TikTok, where hundreds of creators have posted review videos of the drinks, garnering tens of thousands of views.

“This is more than anyone would have expected,” Lunneborg said. “Even the national buyers at Costco were impressed and blown away.”

The drinks pack 30 grams of protein, less than one gram of carbohydrates, 130 calories and zero sugar.

The main ingredient, other than water and additives for flavor, is whey protein

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