The elderly population has shown a serious increase in recent years, and elderly people may be aged over 80 years of age with chronic illness and extreme disability, as well as being completely active, weight normal, healthy or extremely weak. Globally, the population aged 65 years and over is around 16%, while 2% is aged over 85 years and these figures are expected to rise dramatically over the next 30 years. Aging may come with a number of illnesses and weaknesses that can directly affect the balance between nutritional needs and intake, such as cognitive and physical decline, depressive symptoms, and emotional changes. The nutritional behavior of elderly individuals may change due to health or social reasons, decreased taste and odor, or reduced physical strength to buy and prepare food. Malnutrition and unconscious weight loss, inadequate nutrition that does not respond to intervention, a gradual decline in health, increased use of health services and increased mortality. Depression, instrumental activities of daily living dependence and smoking are the factors that increase the risk of malnutrition. Elderly patients who need home health care are predisposed to malnutrition, especially when they have chronic mental or physical illnesses. Malnutrition is difficult to diagnose and treat other diseases when not treated early. For this reason, it is very important that the elderly individuals who are at risk of malnutrition are identified and their risks are removed. Malnutrition management in elderly people requires multidisciplinary approaches. The key steps in the treatment of malnutrition in patients are to identify the malnutrition risk and to intervene as early as possible. Elderly patients who need nutritional support should be taken into account in a good clinical evaluation and consequently their needs should be carefully calculated. The nutritional support program should be well monitored, metabolic changes and complications should not be overlooked. The aim of our study is to draw attention to the malnutrition which is a preventable health problem and which substantially cause mortality and morbidity, and to provide information about the necessary precautions.