From my friend Carlos in Puerto Rico: Little droplets of knowledge!
General information about Watercress..reducing the risk of cancer. This family of cruciferous vegetables has a high content of a group of Phytochemicals called Glucosinolates, which are precursors of a group of compounds that fight cancer known as Isothicyanates...I know these words seem like a lot to try and remember, so no worries! Just remember this...eating this family of Microgreens, such as Cress and Broccoli is a GREAT thing to help ward off disease. In addition to fighting cancer, Watercress also seems to have properties for the preservation of hearing and helping to reduce the most common cause of blindness in adults, Macular Degeneration. It seems that this plant is able to achieve these effects through their high levels of two Carotenoids, Lutein and Zeaxanthin.
Helping in the prevention of heart disease: High levels of Lutein that are found in Watercress can offer an additional benefit, preventing the development of Coronary Artery Disease and heart attacks. Several studies have shown that a diet that provides us with the levels of Lutein needed can protect our arteries from forming dangerous plaques. Ok, be right back...gotta go plant more Cress!! Remember to add healthy fats to your greens, like avocado, and extra virgin olive oil for enhanced nutrition!