Burgers can be high in sodium, with a double hamburger with mayo containing 1,081 milligrams. A small one-patty burger without mayo has only 258 milligrams of sodium. A high-sodium diet can lead to high blood pressure and an increased risk for heart disease, stroke and kidney disease. Healthy adults should consume no more than 2,300 milligrams of sodium per day. Limit your sodium consumption by avoiding salty condiments, such as pickle relish, which has 164 milligrams of sodium per tablespoon.