With the acquisition of Whole Foods and its Whole Foods’ branded items, Amazon and AmazonFresh’s goal of competing with online grocers seems to be coming to fruition.

According to the Wall Street Journal and the data analytics from One Click Retail, AmazonFresh sales are up 35 percent, to $135 million, in the last four months of 2017 compared to the previous four months. The Journal said top-selling items included Whole Foods brands’ organic baby spinach, organic riced cauliflower, unsalted butter and smokehouse bacon.

Despite the increase AmazonFresh, which sold $11 million of Whole Foods 365 Everyday Value natural and organic products last year, still has a ways to go before it approaches the sales dollars of its private label competitors. It was estimated that sales of Kroger’s natural and organic brands approach $2 billion. Albertson’s reported that its organic products account for about $1 billion.

Whole Foods has certainly put AmazonFresh on the map, however. Jim Hertel, senior vice president at food retail consultancy Inmar Willard Bishop Analytics told The Journal that Whole Foods products “may be bringing new people into AmazonFresh. That would be a real positive.”

Amazon sold nearly $2 billion in groceries in the U.S. last year, according to the Journal One Click, however, just $350 million of that was through the AmazonFresh service, where shoppers tend to purchase perishable produce and meat. The remainder was delivered through Amazon’s standard platform as well as its Pantry and superfast Amazon Prime Now service, where shoppers tend to purchase bulky foodstuffs like water, coffee and Soylent meal-replacement drinks.