Common symptoms of malnutrition are weight loss, inability to perform usual tasks, lack of energy and unusual tiredness, and changes in mood, such as being lethargic and depressed, according to WebMD. Poor concentration and loss of appetite are other common symptoms, as well as feeling unusually cold.
Malnutrition is a health condition that occurs if a persons diet does not contain essential nutrients in the right amounts. It is common in individuals with chronic diseases such as Crohn's disease, ulcerative colitis, celiac disease and cystic fibrosis, which make their bodies unable to absorb nutrients from food. A person can be overweight but have malnutrition, and eating a lot of food does not always result in getting the right nutrients to maintain a healthy body, says WebMD.
Poor diet, mental health problems and alcoholism are common causes of malnutrition. Dysphagia is a common condition known to cause poor diet, making a patient unable to consume enough nutrients due to swallowing difficulties. Depression and anorexia nervosa may also lead to malnutrition, due to the lack of appetite. Individuals suffering from alcoholism risk developing gastritis, a condition that can make the body unable to digest food, absorb some nutrients and produce metabolism regulating hormones, notes Medical News Today.