Undernutrition is defined as an imbalance between the body's energy intake and requirements. It is present in 30 to 70% of hospitalised elderly people and its consequences are severe. Systematic screening and early treatment are an integral part of global geriatric care. The aetiological approach must be exhaustive (medico-psychosocial problems) and integrate difficulties related to the physiological ageing of the organism.
Keywords: carence d’apport; dénutrition protéino-énergétique; enteral nutrition; hypercatabolism; hypercatabolisme; intakes deficiency; malnutrition; nutrition entérale; nutrition orale; nutrition parentérale; oral nutrition; protein-energy malnutrition.
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