Although I am not a professional, judging from my common sense, the so-called "cold food" does not necessarily mean "cold" or "hot" in temperature (it is not excluded that people nowadays often take it out of context, hehe). You should know that some foods are "cool", such as bananas, persimmons, pears and apples. It is often used to "reduce fire" in our lives. Then, food like this is "cold" and women's bodies are negative. Eating these cold foods should have a certain effect on your health. Therefore, what elders often say about "don't touch cold water during menstruation" is because the water itself is negative, not because it is "cold", and the so-called "cold food" should not include those warm and sweet foods, but cold food can be eaten after heating, which can make up for the impact on the body. This is my humble opinion, for reference only.