Like to eat sweet and emotional depression, hypoglycemia, vitamin deficiency, long-term did not eat sweets and other factors related. Many people will have a sudden desire to eat sweets in their diet, mainly considered to be directly related to a short period of low mood, because the human body when the mood is low appropriate to eat some sweets can regulate the mood, so that the spirit becomes pleasant. Some people have the phenomenon of hypoglycemia in their bodies, and the patients will show physical weakness, mental tension, irritability and hunger, etc. Eating sweets appropriately can improve the patients’ symptoms. Due to the lack of B vitamins in the body, it cannot convert carbohydrates, fats and proteins inside the food into energy to supply the body, so it will lead to the lack of nutrients in the body, and the performance of wanting to eat sweets will also appear. If you used to eat sweets frequently and now you have not eaten sweets for a long time, you may also experience a sudden desire to eat sweet foods.