Vegetarians are prone to catch a cold if they don't pay attention to cooking methods. And there are really many cold vegetarians at present. Body cold can cause many physical problems, making people who don't know misunderstand that vegetarianism is not good for their health.

Vegetarians should eat more ginger. Ginger is not an animal product.

As for bitter gourd, such a cold food may not be able to eliminate its coldness even if it is cooked. You're still thinking about stew. Drinking it will hurt. Some things don't work immediately. I often regret it when I realize that I am suffering from its coldness.