Whole Foods now has over 470 stores in the U.S., Canada and United Kingdom combined, but the majority - 463 - are in the U.S.
Amazon CEO Jeff Bezos last month disclosed the number of Prime members publicly for the first time, saying the program has more than 100 million members globally.
Earlier this year, the companies launched free two-hour delivery on Whole Foods groceries in 10 test cities, through Amazon's Prime Now service.
For instance, this week in Florida, wild-caught halibut steaks will be $9.99 a pound, about half the regular price. "Maybe it gets them more Prime customers, more Whole Foods usage and more units per cart".
Cold-brew coffee at Allegro coffee bars: 50 percent off 16 oz.
Prime members scan an app or input their phone numbers at checkout to receive the discounts. Customers can also go to the Whole Foods Market app to learn about offers each week. However this is an interesting idea, tying together this idea of providing fresh foods at a good price to Prime members.
It's the latest effort by Amazon to make Whole Foods more affordable, attempting to shed the grocer's "Whole Paycheck" reputation.
The company said, however, that the integration of Whole Foods was among the fastest startups of a new Prime program.
The companies also launched two-hour delivery from Whole Foods via Amazon's Prime Now service in 10 cities across the US, with more to come this year, Amazon says. It also offers 5 percent back on all Whole Foods purchases to customers with the Amazon Prime credit card.
Amazon has fired another shot across the supermarket industry's bow.
Since Amazon bought Whole Foods Market in August of past year, it has been reducing prices at the stores which, though popular, had always been known by the nickname "Whole Paycheck".