Nature's Way Ultra Strength Cell Forté Drink Mix with IP-6 & Inositol supports immune health and natural killer cell activity. While IP-6 is found in rice bran and other foods, there are good reasons to take an IP-6 & Inositol supplement. IP-6 is often lacking in foods that have been processed since IP-6 is usually found in the bran or hull, which is often milled away.