Canned Soup: Convenient, But Not Nutritious

According to the American Heart Association, canned soup is one of the "salty six"--the most popular foods that sneak sodium into your diet. Although they recommend 1,500 mg of sodium per day, the broth in canned soup contains 500 mg. That doesn't include the other salty, preserved ingredients.

Excess sodium is dangerous for the heart, says registered dietitian Tanya Zuckerbrot. She told The Daily Meal that salt puts pressure on the blood vessels. Over time, this could develop into heart disease. If you buy canned soups, opt for a low-sodium variety.