Viridian Saffron Extract with Marigold Vegetable Capsules Recent studies and press coverage show evidence of efficacy in the maintenance of eye health and mood. An excellent alternative to St. John's Wort. In addition to adding a unique flavour to foods, saffron has also been used for many centuries as a medical treatment for a variety of health conditions, including inflammation, digestive problems, kidney stones, menstrual disorders, colds, insomnia, asthma and anxiety and its related symptoms. Kosher. Vegan.