Beyond Meat is revamping its signature plant-based burger, hoping that healthier ingredients will help it boost flagging U.S. sales. The El Segundo, California-based company said Wednesday its new Beyond Burger patties and Beyond Beef grounds cut saturated fat by 60% by switching from canola and coconut oils to avocado oil. The new beef products also have less sodium and more protein. The new products go on sale in the U.S. this spring. Beyond Meat has updated its products before, but Beyond Meat Founder and CEO Ethan Brown said this is the biggest leap forward the brand has made since the Beyond Burger went on sale in 2016.