Because pickles tend to be high in sodium, it is possible to consume an unhealthy amount of this snack. A medium kosher dill pickle can have more than 1,000 milligrams of sodium: almost half the recommended daily amount, which, according to MedlinePlus, is 2,300 milligrams. Eating three or four pickles can put a snacker over the maximum in just a few minutes.
In many ways, pickles are a healthy snack. They are typically fat free and have very few calories, but that doesn't mean they don't also contain bad properties. Pickles are generally heavy on sodium, or salt, which can cause serious health problems in large doses. While healthy adults who eat a few more pickles than recommended every once in a while may not be at serious risk of health complications, it is possible to overdose on sodium. In 2013, news reports profiled a teenager who put himself into a coma by quickly drinking a dangerous amount of sodium-heavy soy sauce, which caused a sodium overdose.