Is food grade diatomaceous earth FDA approved?

Food grade diatomaceous earth is recognized by the FDA as safe for use in food products and is generally regarded as safe (GRAS). It is commonly used as an anti-caking agent in animal feed and can also be used in various food applications. However, it's important to ensure that the product is labeled as "food grade" to differentiate it from non-food grade varieties, which can contain harmful additives. Always consult product labels and guidelines for specific uses.