Dietetics home thinks general food color is deeper, its nutrition part is more substantial, if dark beer, black cake, black sesame seed is burnt. 4 it is refrigerant food. 5 it is soup canister food.

• 营养学家认为一般食物颜色越深,其营养成分越丰富,如黑啤酒、黑糕点、黑芝麻糊。四是冷冻食品。