Why Are You Feeling Cold After Eating? People often experience a change in body temperature after they eat something. Some, therefore, have the confusion, "why do I get cold after eating?" Some think it happens because they smoke , others are of the view that it happens because of a slow metabolism. Continue reading to learn about different causes of why you feel cold after eating and things you can do about it. Why Are You Feeling Cold After Eating? Why Do I Get Cold After I Eat? Depending on the temperature and type of food you eat, it is natural to experience some changes in your body temperature after eating. Usually, your body heats up when your blood moves to your digestive system and away from the extremities. Your body temperature will also rise while digesting food that requires more energy to break down, such as protein. Yet, your body temperature may come down if you have eaten cold foods and increase when you eat hot foods. Below are some poss...