Red Lobster, the largest seafood restaurant chain in the United States, won't have to worry about any supply interruptions related to pollock, after replacing the fish with one it says is higher quality and more popular with guests.

The company "transitioned out of pollock" at the end of last year, Nicole Bott, senior director of communications and external affairs, told IntraFish.

She also said the company is not sourcing pollock or any fish from Russia right now.

"We are not currently buying any product from Russia or of Russian origin," Bott said.