Kos certification indicates that a food product meets specific dietary guidelines outlined by Jewish law (kashrut). For a product to be labeled as kosher, it must be free from certain ingredients (like pork or shellfish), and it must be prepared using utensils that are also kosher.
Many Nestlé products, including some varieties of Turtles, may have kosher certification, but it's essential to check the packaging for a reliable kosher symbol, like OU (Orthodox Union) or OK (OK Kosher Certification). This symbol confirms that the product adheres to kosher guidelines.