In response to the Health Department’s new salt reduction initiative, the Times ordered some food from local restaurants and sent it off to a Long Island lab for sodium testing. What they found may not shock you: A Double ShackBurger, fries and a peanut butter shake from Shake Shack contain 1,980 milligrams of sodium. Two slices of Cajun bacon-cheeseburger pizza from Two Boots clock in at 2,240 milligrams. But the saltiest of them all is the corned beef sandwich from Katz’s Deli, which contains 4,490 milligrams of sodium. Considering that the FDA recommends a maximum of 2,400 milligrams of sodium per day, “having what she’s having” might just leave you with hypertension.