Amazon will "eat all our breakfasts, lunches and dinners," Wesfarmers boss Richard Goyder warned his fellow retailers in March. As the boss of the conglomerate that owns No. 2 supermarket chain Coles, Mr Goyder best mind his meals.

Amazon, the world's biggest retailer, says it is coming.

Vegetables for home delivery in Australia might be an Amazon project within the next year or two. Credit:Kerrie O'Brien

An Amazon executive says the $US338.7 billion retailer could launch its fresh and frozen food delivery service, known as Amazon Fresh, in Australia as early as next year – and could quickly snaffle billions in sales in a grocery market worth $90 billion.

"We know there is value in Australia," Amazon's Brittain Ladd told Fairfax Media. "I definitely believe Amazon will be in Australia."