The U.S. groceries market is likely to heat up further.

In what is likely to be a milestone for Amazon.com, the world’s largest online retailer has managed to get an approval from the U.S. Federal Trade Commission for its planned $13.7 billion acquisition of Whole Foods Market Inc.

In its statement, the FTC said it had reviewed whether Amazon’s acquisition of Whole Foods Market would substantially diminish competition or constitute an unfair method of competition and opted not to pursue its investigation further.