The urge to eat sweets as soon as you are hungry is a normal physiological response to remind the need to eat. It can also be a symptomatic manifestation of certain diseases, such as hypoglycemia, diabetes, and vitamin B deficiency. 1. Hypoglycemia: due to insufficient sugar intake. Resulting in less sugar absorbed into the bloodstream through the intestines, unable to meet the body’s normal consumption. So there will be a feeling of wanting to eat sweets as soon as you are hungry. 2. Diabetes: Diabetic patients can have the feeling of wanting to eat sweets due to the possibility of hypoglycemic reaction during medication, or due to unsatisfactory blood sugar control and hunger. 3. Vitamin B deficiency: the lack of vitamin B complex makes the conversion of sugar into calories hindered. Insufficient energy in the body leads to the desire to eat sweets as soon as you are hungry. If the symptom of wanting to eat sweets when you are hungry is more serious, you should go to the hospital in time.