Saffron is one of the most valuable and expensive spices known worldwide, thanks to its color, flavor and medicinal properties. What medicinal properties, you may ask? The list is extensive and continues to grow. 1.Boosts Cardiovascular Health, 2.Treats Erectile Dysfunction, 3.Possesses Potential Anticancer Effects, 4.Promotes Satiety and Weight loss, 5.Treats Anxiety and Depression.