US jam and peanut butter maker JM Smucker has been sued over its "100% Fruit" jam label. A woman in California filed the proposed class-action lawsuit claiming that the label was misleading. The lawsuit alleges that tests on the company's "Simply 100% Fruit" strawberry jam revealed that the product contained less than 30% actual strawberries, while the blueberry version contained 43% berries, reported Reuters.