Protein Energy Malnutrition How Serious Can it Be?
Protein energy malnutrition (PEM) is aEssential M potentially fatal body deprivation disorder that is the leading cause of death in developing countries. PEM happens when there are not enough calories or proteins to meet the body's nutritional needs. However, it does not always happen simply in the absence of protein in the diet, it can also occur when the body is either unable to absorb the protein or is not able to convert it for its own use.
PEM is not a common problem in the United States; statistically however it does affect two different demographic groups: the elderly who are living in nursing homes or other long term care facilities and children from poor families. It occurs in one in every two surgical patients and strikes 48% of all other, admitted, hospital patients (Source: FAQS.org)
There are two varieties of PEM, Primary and Secondary. Primary PEM occurs when there is a lack of overall protein sources in the diet and too few calories. Secondary PEM is more common in the United States and is typically a complication that has developed from another disease including: AIDS, cancer, chronic kidney failure, inflammation bowel disease. PEM can develop slowly during a chronic illness or when the body is in a state of semi-starvation, but may develop quickly if there is an acute illness.
Protein energy malnutrition occurs in both hospital patients and long term care facility residents for a number of reasons. Many of them cannot chew or swallow correctly, preventing them from getting enough food into their system. Others may have slowed or faulty digestive systems, keeping them from processing the foods that they are taking in and leaving them feeling uncomfortable and unwilling to eat the next meal. Many of them are also not active and may have slowed or completely absent metabolisms, preventing them from feeling hunger at all. The elderly also tend to have a reduced sense of appetite to begin with, even when healthy.