Enjoy Ito En Oi Ocha Dark Roasted (12x16.9Oz). One of our newest additions to our line, Oi Ocha Dark offers a brew for those who prefer a much bolder tasting green tea than Oi Ocha Original. Plus, it's even higher in the antioxidant catetchin.. it has a minimum of 400mg per bottle of naturally occurring catechin tea antioxidants. Unsweetened. No calories. . Note: description is informational only. Please refer to ingredients on the product before use. Please address any health or dietary questions to your health professional before using this item.