What soup has the least calories?

How many cals (averagely) in a can of soup? I guess it varies by flavour- so which is the lowest cals?

What you really need to watch out for is how much sodium it has, not so much calories! Cambells soup usually has 70 calories in a serving but has 870mg of Sodium! Sodium makes you retain water which will make you heavier.

Cream soups have more calories. Clear broth style soups are the lowest in calories.

Well you should eat homemeade soups the ones from the can I personally don't like =\

one soup I like you to try, is called tom- yum- soup or hot and sour soup. you can try it at Thai restaurants.