Our Super Herbal Immune tea is a nicely balanced combination of lemon, echinacea, and ginger with the added goodness of Zinc. Practice self-care with a cup or two each day. Source of Zinc (19% of the recommended daily value per serving). Zinc contributes to the normal function of the immune system. Health Canada recommends drinking no more than 2 cups per day as individuals obtain zinc from a variety of other food sources. 20 tea bags. Kosher. Caffeine Free.