Ten million KFC Double Down sandwiches in the U.S. haven’t persuaded Canada to offer it here.

KFC announced this week its sodium-and-fat-filled trial balloon has been so wildly popular that it would be keeping the Double Down on the menu.

Constructed out of two fried chicken breasts, sauce, bacon and two kinds of cheese, the DD packs in 540 calories, 1,380 milligrams of sodium and 23 grams of fat.

Launched April 12 for a six-week trial, the Double Down will have sold 10 million sandwiches by the end of the month, said Javier Benito, KFC’s vice-president of marketing and food innovation.

Calling it a “social media phenomenon,” Benito enthused about the Twitter reviews and YouTube eating videos it spawned.

“Millions of Double Down fans have spoken, and we won’t disappoint them. You’ll continue to be able to get the Double Down this summer.”

But not in Canada. KFC Canada, which is franchised by Priszm Income Fund and makes its own product decisions, still has no plans to offer the bunless wonder.

“KFC Canada closely monitors customer response to all international and U.S. product launches and continuously evaluates opportunities to test these new menu items in Canada,” a company spokesman said Thursday.