Soups often enter weight loss diet plans, but not all soups are created equal. Which soup to choose? According to the ranking below it is best to choose water based soups which are lower in fats and calories than cream based soups. The serving sizes presented below are for 100 gram servings which is roughly 1/4-1/2 a cup of soup. A bowl of soup is typically 2 cups or 400 grams, which is 4 times the caloric value shown here. The percentages of protein, carbs, and fat would be the same no matter what the serving size. Below is a ranking of soups by calorie from lowest to highest. The ranking assumes all soups are ready to serve and does not include soups that are in condensed, powered, or broth form. Unfortunately the database contains mostly canned soups which are likely less healthy than homemade soups. In general, the more water a soup contains the less calories it will have, so if you are dieting, go with watered down soups. For more, see the blog post on how to choose a low calorie soup.