The Callaloo is rich of iron, there is no better plant with more medicinal uses that compares to Callaloo vegetables. In fact many people prefer consuming it because of its wide range of medical uses among other health benefits. To understand the health benefits of this herbal plant, you need to be aware of the nutrients it contains. Callaloo contains 4 times the amount of calcium found in broccoli and twice the iron. Also it contains Vitamin C for boosting up your immune system, B Vitamins for good mood and vitality, and Vitamin A which is a great antioxidant.