Extreme Keto Broccoli not only has low calories, but is also inexpensive. Broccoli is one of the tastiest and healthiest vegetables, and it's readily available year-round. Broccoli helps you lose weight because they are high in fiber and water, so you get a lot of food for a few calories. Celery has a high concentration of calcium that ignites your endocrine system. The hormones help to break up the accumulation of fat build up, resulting in weight loss.