Hungry edema is not the only disease caused by a lack of nutrition. Malnutrition is called malnutrition, and is considered a serious medical condition. There are various diseases that can arise due to malnutrition. A person can still experience malnutrition despite consuming a lot of food. This is because these foods do not contain macronutrients (carbohydrates, proteins, and fats) and micronutrients (vitamins and minerals) that are sufficient to meet daily nutritional needs. In addition, malnutrition can also be caused by a health condition of the body that cannot absorb nutrients, problems with mental health, and addiction to narcotics or alcohol, and poverty. Without improved nutrition and proper treatment, malnutrition can cause health problems. Health Disorders Caused by Malnutrition Malnutrition triggers growth disturbance in children, low body weight, decreased learning ability, difficulty concentrating, and susceptible to illness due to the immune system is not optimal.