SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
Jan. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES (a) Nature of Business United Natural Foods, Inc. and its subsidiaries (the “Company”) is a leading distributor and retailer of natural, organic and specialty products. The Company sells its products primarily throughout the United States and Canada. (b) Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial information, including the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, certain information and note disclosures normally required in complete financial statements prepared in conformity with accounting principles generally accepted in the United States have been condensed or omitted. In the Company’s opinion, these financial statements include all adjustments necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. The results of operations for interim periods, however, may not be indicative of the results that may be expected for a full year. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended August 2, 2014. Net sales consist primarily of sales of natural, organic and specialty products to retailers, adjusted for customer volume discounts, returns and allowances. Net sales also include amounts charged by the Company to customers for shipping and handling and fuel surcharges. The principal components of cost of sales include the amount paid to manufacturers and growers for product sold, plus the cost of transportation necessary to bring the product to the Company’s distribution facilities. Cost of sales also includes amounts incurred by the Company’s manufacturing subsidiary, United Natural Trading LLC, which does business as Woodstock Farms Manufacturing, for inbound transportation costs and depreciation for manufacturing equipment offset by consideration received from suppliers in connection with the purchase or promotion of the suppliers’ products. Operating expenses include salaries and wages, employee benefits (including payments under the Company’s Employee Stock Ownership Plan), warehousing and delivery, selling, occupancy, insurance, administrative, share-based compensation and amortization expense. Operating expenses also include depreciation expense related to the wholesale and retail divisions. Other expense (income) includes interest on outstanding indebtedness, interest income, foreign exchange gains or losses and other miscellaneous income and expenses. As noted above, the Company includes shipping and handling fees billed to customers in net sales. Shipping and handling costs associated with inbound freight are generally recorded in cost of sales, whereas shipping and handling costs for selecting, quality assurance, and outbound transportation are recorded in operating expenses. Outbound shipping and handling costs, including allocated employee benefit expenses, totaled $112.7 million and $98.8 million for the three months ended January 31, 2015 and February 1, 2014, respectively. Outbound shipping and handling costs, including allocated employee benefit expenses, totaled $224.7 million and $195.1 million for the six months ended January 31, 2015 and February 1, 2014, respectively. (c) Correction of Prior Period Errors During the three months ended January 31, 2015, the Company recorded a cumulative prior period adjustment to net sales for $7.7 million related to amounts owed to a customer resulting from an incorrect calculation of contractual obligations to that customer from fiscal year 2009 through fiscal year 2014. The aggregate amount of the reduction in net sales related to this incorrect calculation was $9.3 million, which includes a $1.6 million reduction in net sales in the first quarter of fiscal 2015. The Company reviewed the impact of these corrections in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 99 "Materiality," and determined that these corrections were not material to prior or current periods.

SIGNIFICANT ACCOUNTING POLICIES

(a) Nature of Business

United Natural Foods, Inc. and its subsidiaries (the “Company”) is a leading distributor and retailer of natural, organic and specialty products. The Company sells its products primarily throughout the United States and Canada.

(b) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial information, including the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, certain information and note disclosures normally required in complete financial statements prepared in conformity with accounting principles generally accepted in the United States have been condensed or omitted. In the Company’s opinion, these financial statements include all adjustments necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. The results of operations for interim periods, however, may not be indicative of the results that may be expected for a full year. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended August 2, 2014.

Net sales consist primarily of sales of natural, organic and specialty products to retailers, adjusted for customer volume discounts, returns and allowances. Net sales also include amounts charged by the Company to customers for shipping and handling and fuel surcharges. The principal components of cost of sales include the amount paid to manufacturers and growers for product sold, plus the cost of transportation necessary to bring the product to the Company’s distribution facilities. Cost of sales also includes amounts incurred by the Company’s manufacturing subsidiary, United Natural Trading LLC, which does business as Woodstock Farms Manufacturing, for inbound transportation costs and depreciation for manufacturing equipment offset by consideration received from suppliers in connection with the purchase or promotion of the suppliers’ products. Operating expenses include salaries and wages, employee benefits (including payments under the Company’s Employee Stock Ownership Plan), warehousing and delivery, selling, occupancy, insurance, administrative, share-based compensation and amortization expense. Operating expenses also include depreciation expense related to the wholesale and retail divisions. Other expense (income) includes interest on outstanding indebtedness, interest income, foreign exchange gains or losses and other miscellaneous income and expenses.

As noted above, the Company includes shipping and handling fees billed to customers in net sales. Shipping and handling costs associated with inbound freight are generally recorded in cost of sales, whereas shipping and handling costs for selecting, quality assurance, and outbound transportation are recorded in operating expenses. Outbound shipping and handling costs, including allocated employee benefit expenses, totaled $112.7 million and $98.8 million for the three months ended January 31, 2015 and February 1, 2014, respectively. Outbound shipping and handling costs, including allocated employee benefit expenses, totaled $224.7 million and $195.1 million for the six months ended January 31, 2015 and February 1, 2014, respectively.

During the three months ended January 31, 2015, the Company recorded a cumulative prior period adjustment to net sales for $7.7 million related to amounts owed to a customer resulting from an incorrect calculation of contractual obligations to that customer from fiscal year 2009 through fiscal year 2014. The aggregate amount of the reduction in net sales related to this incorrect calculation was $9.3 million, which includes a $1.6 million reduction in net sales in the first quarter of fiscal 2015. The Company reviewed the impact of these corrections in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 99 "Materiality," and determined that these corrections were not material to prior or current periods.