Kale, also called kale, is a cruciferous vegetable probably native to Italy (still very popular there), which was already eaten in Roman times. Kale is very low in calories (33 calories per 1 cup) and it is literally packed with good things: protein, fiber, vitamin A, B (folic acid), C and K, omega-3 fatty acids (less than in fish, but still!), iron, phosphorus, potassium, calcium, zinc and lutein (which is great for eye health). Its many antioxidants make it a food of choice in cancer prevention. It also contributes to cardiovascular health, among other things by lowering our "bad" cholesterol. It is an anti-inflammatory (which acts against arthritis, diabetes, asthma and autoimmune diseases), it is an ally in the prevention of Alzheimer's, in addition to being an excellent food for boosting the immune system and metabolism. Ultimately, it is a powerful detoxifier.