What patents can food obtain?

In theory, what patents can be obtained for food? Or something protective like copyright. Trademark is impossible, I understand this basic knowledge. Can the shape of food be protected? I'm studying new snacks. Thank you. Texture: you can apply for an invention patent; Shape: you can apply for a patent for outer packaging or a new type of application. But there is no map of money. China patent network. Com: In China, patents include invention patents, utility model patents and design patents. Invention refers to a new technical scheme proposed for a product, method or its improvement; Utility model refers to a new practical technical scheme for the shape, structure or combination of products; Appearance design refers to a new design that is aesthetically pleasing and suitable for industrial application for the shape, pattern, color or their combination of products. According to the definition of patent in China, your food patent application is closest to what kind of patent according to its characteristics, because you don't know the specific nature of your patent, so you can't give a clear answer.