1. There are many vegetarians in the world, who believe that vegetarian food is healthier, pure and clean, and more nutritious.

2. Animal protection organizations, which advocate eating more vegetarian food to protect animals.

3. Buddhism advocates vegetarianism as a way of practicing the Buddha's teaching of not killing, cultivating compassion, and facilitating spiritual cultivation.

4. For those who want to lose weight and shape their body, eating more vegetarian food and reducing the absorption of calories will have better results.