Amazon is now offering 2,000 basic packaged foods as part of its drive to become the number one destination for online consumers.

Shoppers can pick up 70 individual Kellogg's Corn Flakes portions for $28.

If more than $25 is spent, Amazon also pays for delivery -- a decision experts say shows its determination to take on other discount and mail order grocers.

The focus on bulk sales of non-perishable items allows the firm to take on big US names like Wal-Mart and Costco.