Table 1.

Food classification applied in DDS.

Food classification	Food items
Cereals	Cereals and their products
Vegetables	Various vegetables: leafy vegetables, fresh beans, rhizomes, melons, eggplant fruits, bacteria and algae, etc.
Fruits	Fresh fruit and dried fruit
Animal meat	Animal and poultry meat such as pork, chicken, beef
Fish and shrimp	Fish, shrimp, shellfish
Eggs	Fresh and salted eggs of various animals
Beans and soy products	Soybean and its products such as soymilk and tofu
Milk and dairy products	Milk, yogurt and other dairy products
Oil and fat	Animal oil, vegetable oil