There are five Weight Watcher points in a 3-ounce serving of Atlantic pickled herring. Pickled herring is low in cholesterol and contains 11 grams of protein per serving. It also provides a natural source of vitamin B12, vitamin D and selenium.
Pickled herring also promotes healthy muscle tone and clear skin. Despite its advantages, it is high in sodium. One serving contains 1,218 milligrams of sodium, which is 51 percent of the recommended daily sodium intake based on a 2,000-calorie diet. A serving also contains 11 grams of sugar.
Traditionally, herring is pickled in a vinegar, salt and sugar solution, with spices such as dill, sherry, onion and mustard added for flavor.