Lack of food, this is common among the low income group as well as those who are homeless.
Those having difficulty eating due to painful teeth or other painful lesions of the mouth.
Loss of appetite. Common causes of loss of appetite include cancers, tumours, depressive illness and other mental illnesses, liver or kidney disease, chronic infections etc.
Those with a limited knowledge about nutrition tend to follow an unhealthy diet with not enough nutrients, vitamins and minerals and are at risk of malnutrition.
Elderly living alone, disabled persons living alone or young students living on their own often have difficulty cooking healthy balanced meals for themselves and may be at risk of malnutrition.
The elderly (over 65 years of age are), especially those living in care facilities are at a higher risk of malnutrition.
These individuals have long term illnesses that affect their appetite and ability to absorb nutrients from food and they may also have difficulty feeding themselves.
In addition, there may be concomitant mental ailments like depression that affect appetite and food intake.
The demand for energy from food exceeds the amount of food taken. This includes those who have suffered a serious injury, burn or after major surgical procedures.
Among children lack of knowledge of adequate feeding among parents is the leading cause of malnutrition worldwide.