Kale powder can serve as a natural green pigment source, which can be added to pet foods such as dog food and cat food to give the products a natural and soft green tone, suitable for formula designs that avoid artificial colors. In its powder form, it is easy to be uniformly mixed with the dry food particle matrix, pet snack raw materials or wet food systems. The coloring process is stable and is less affected by processing temperature and humidity, helping the products maintain a consistent color appearance. 
When used as a plant pigment, kale powder can meet the coloring requirements of various forms of pet food. It can not only provide the basic green color for the product alone, but also be combined with other natural pigments (such as pumpkin powder and beetroot powder) to adjust the color tone. At the same time, the addition ratio can be flexibly adjusted according to the target color concentration, providing support for the visual diversity and natural ingredient positioning of pet food, and aligning with the product development direction that emphasizes ingredient safety and visual appeal.