Amazon said Thursday it plans to complete its $13.7 billion acquisition of Whole Foods on Monday after winning antitrust approval from U.S. regulators.

The companies said in a joint statement that Whole Foods will offer lower prices starting on Monday on a selection of best-selling grocery staples across its stores. Amazon also said that it will start selling Whole Foods brand products on its website.

Amazon said starting Monday it will cut prices on Whole Trade bananas , organic avocados , organic large brown eggs , organic farmed salmon and tilapia , organic baby kale and baby lettuce , some apples , butter , and other products.

Amazon said its Prime members will eventually become part of Whole Foods Markets customer rewards program.