2. Hot and Cold Foods (Temperature)
Some nutrition specialists believe that hot foods can weaken the stomach muscle structure and interfere with the secretion of hydrochloric acids, which is produced in the stomach lining. Hydrochloric acid works to kill bacteria in the food and to soften it. It also helps provide the right condition for the enzyme pepsin to help in digestion of proteins.
Cold foods is believed to constrict the mucous lining of the bowel, thus making it difficult for foods to be digested. So, if you have to drink an ice drink or eat ice cream, you should allow the food to be warmed in the mouth before you swallow. Also, allow hot foods to cool a little before eating or drinking. Also, never drink cold drinks when you are eating food. Hot and cold foods are among the ways food can damage health.