vegetarian broth while fasting?

I am doing the stop overeating course. I am fasting from 6p to noon. I have 2 cups of coffee with half and half during the fast. Also, I am wondering if I can have vegetable broth during the fast to help with my hunger and headaches. Brooke mentioned that you can have bone broth, but I’m vegetarian. The vegetable broth has 2 grams of carbs, less than 1 gram of sugar.