Add the water, celery, onion, and pepper, cover, and turn the heat on high.

NPR: Recipes: 'The Summer Shack Cookbook'

That's not to say that celery sticks - along with other high fibre, water-heavy fruits and vegetables - have no value as weight-loss aids.

BBC: Who, Why, What: Can foods have negative calories?

Consider celery, often proposed as a negative-calorie food due to its low-calorie count, high water density, and impressive fibre content.

BBC: Who, Why, What: Can foods have negative calories?