* Spring: spinach, sweet potato, strawberry, pumpkin, apple, cabbage and broccoli. These foods are rich in carotene and antioxidants, which have strong antioxidant and anti-inflammatory effects and will not cause immune response or damage to the digestive tract.

Summer: salmon/tuna/shrimp, chicken breast. These foods are rich in protein and minerals, which can enhance the immunity of dogs and promote the healthy growth of bones.

* Autumn: bananas, celery, carrots, apples, cauliflower. These foods are rich in vitamins and dietary fiber, which can help dogs improve their intestinal problems and enhance their resistance.

* Winter: beef, eggs, fish, chicken breast. These foods can provide high-quality protein and multivitamins, and help to maintain the dog's muscle mass and enhance physical strength.

It should be noted that although these foods are beneficial to dogs, they should follow the principle of proper feeding to avoid giving too much or too little, so as not to cause health problems. At the same time, be sure to provide dogs with enough water and proper exercise.