|  | Contacts:    | Dolph Baker, President and CEOTimothy A. Dawson, Vice President and CFO(601) 948-6813 |
|--|-----------------------------|---------------------------------------------------------------------------------------|

| CAL-MAINE FOODS, INC. | POST OFFICE BOX 2960 ▪ JACKSON, MISSISSIPPI     39207                                                                                                                                                           |
|-----------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                  | PHONE 601-948-6813                                  FAX 601-969-0905 |

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|                              |   | 13 Weeks Ended |    |   | 39 Weeks Ended |   |
|-----------------------------------|--------|--------------------------|---------|--------|--------------------------|--------|
|                              |   | February 26,2011    |    |   | February 27,2010    |   |   | February 26,2011 |   |   | February 27,2010 |   |
| Dozen Eggs Sold (000)             |   |                     | 215,233 |   |                     |   | 210,921 |   |   |   | 615,257 |   |   |   | 610,219 |   |
| Dozen Eggs Produced (000)         |   |                     | 161,295 |   |                     |   | 162,177 |   |   |   | 476,388 |   |   |   | 482,967 |   |
| Dozens Eggs Purchased (000)*      |   |                     | 53,938  |   |                     |   | 48,744 |   |   |   | 138,869 |   |   |   | 127,252 |   |
|                              |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| % Specialty Sales (dozen)         |   |                     | 17.5    | %      |                     |   | 15.4 | % |   |   | 16.0 | % |   |   | 14.1 | % |
|                              |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Net Average Selling Price (dozen) |   | $                        | 1.234   |   |                     | $      | 1.238 |   |   | $ | 1.090 |   |   | $ | 1.077 |   |
| Feed Cost (dozen)                 |   | $                        | 0.404   |   |                     | $      | 0.347 |   |   | $ | 0.376 |   |   | $ | 0.358 |   |
|                              |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| % Specialty Sales (dollars)       |   |                     | 23.5    | %      |                     |   | 20.4 | % |   |   | 23.9 | % |   |   | 21.0 | % |

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|                                 |   | 13 Weeks Ended |    |   | 39 Weeks Ended |   |
|--------------------------------------|--------|--------------------------|---------|--------|--------------------------|--------|
|                                 |   | February 26,        |    |   | February 27,        |   |   | February 26, |   |   | February 27, |   |
|                                 |   | 2011                     |    |   | 2010                     |   |   | 2011 |   |   | 2010 |   |
| Net sales                            |   | $                        | 274,674 |   |                     | $      | 271,156 |   |   | $ | 699,600 |   |   | $ | 688,055 |   |
| Gross profit                         |   |                     | 65,580  |   |                     |   | 74,924 |   |   |   | 143,531 |   |   |   | 139,968 |   |
| Operating income                     |   |                     | 38,961  |   |                     |   | 49,937 |   |   |   | 69,785 |   |   |   | 70,071 |   |
| Other income                         |   |                     | 11,573  |   |                     |   | 3,427 |   |   |   | 10,232 |   |   |   | 1,069 |   |
| Income before income taxes           |   |                     | 50,534  |   |                     |   | 53,364 |   |   |   | 80,017 |   |   |   | 71,140 |   |
|                                 |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Net income                           |   | $                        | 33,619  |   |                     | $      | 34,534 |   |   | $ | 53,568 |   |   | $ | 46,796 |   |
|                                 |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Net income per common share:         |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Basic                                |   | $                        | 1.41    |   |                     | $      | 1.45 |   |   | $ | 2.25 |   |   | $ | 1.97 |   |
| Diluted                              |   | $                        | 1.40    |   |                     | $      | 1.45 |   |   | $ | 2.24 |   |   | $ | 1.96 |   |
|                                 |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Weighted average shares outstanding: |   |                     |    |   |                     |   |   |   |   |   |   |   |   |   |   |   |
| Basic                                |   |                     | 23,861  |   |                     |   | 23,818 |   |   |   | 23,852 |   |   |   | 23,805 |   |
| Diluted                              |   |                     | 23,943  |   |                     |   | 23,880 |   |   |   | 23,941 |   |   |   | 23,875 |   |

|                                        |   | February 26,2011 |    |   | May 29,2010 |   |
|---------------------------------------------|--------|-----------------------|---------|--------|------------------|--------|
| ASSETS                                      |   |                  |    |   |             |   |
| Cash and short-term investments             |   | $                     | 213,428 |   |             | $      | 199,055 |   |
| Receivables                                 |   |                  | 65,131  |   |             |   | 43,587 |   |
| Inventories                                 |   |                  | 103,080 |   |             |   | 93,968 |   |
| Other                                       |   |                  | 1,251   |   |             |   | 1,550 |   |
| Current assets                              |   |                  | 382,890 |   |             |   | 383,160 |   |
|                                        |   |                  |    |   |             |   |   |   |
| Property, plant and equipment (net)         |   |                  | 225,210 |   |             |   | 234,111 |   |
| Other assets                                |   |                  | 58,394  |   |             |   | 59,013 |   |
| Total assets                                |   | $                     | 666,494 |   |             | $      | 631,284 |   |
|                                        |   |                  |    |   |             |   |   |   |
| LIABILITIES AND SHAREHOLDERS' EQUITY        |   |                  |    |   |             |   |   |   |
| Accounts payable and accrued expenses       |   | $                     | 88,801  |   |             | $      | 68,020 |   |
| Current maturities of long-term debt        |   |                  | 13,730  |   |             |   | 29,974 |   |
| Deferred income taxes                       |   |                  | 21,874  |   |             |   | 19,980 |   |
| Current liabilities                         |   |                  | 124,405 |   |             |   | 117,974 |   |
|                                        |   |                  |    |   |             |   |   |   |
| Deferred income taxes and other liabilities |   |                  | 34,754  |   |             |   | 31,655 |   |
| Long-term debt, less current maturities     |   |                  | 95,170  |   |             |   | 104,699 |   |
| Shareholders' equity                        |   |                  | 412,165 |   |             |   | 376,956 |   |
| Total liabilities and shareholders' equity  |   | $                     | 666,494 |   |             | $      | 631,284 |   |

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