Prairie Naturals makes it easy for you to get the nutritional and health benefits of kale along with the digestive benefits provided by natural fermentation! Kale (brassica oleracea) is North America's most popular leafy green vegetable for good reason. It's packed with naturally occurring vitamins and minerals. Add to your smoothies, soups and salad dressings for a daily boost of green energy. Vegan, gluten-free and non-GMO.