Are there any side effects or interactions with Utiva Cranberry PAC?

There are no known side effects with Utiva Cranberry PACs unless you are allergic to cranberries. Typically cranberry products are known to have high levels of Vitamin K and Oxalates. These can interfere with blood thinners and aggravate kidney stones. Utiva Cranberry PACs has removed the Vitamin K and only has trace amounts of Oxalates.