Malnutrition in the elderly: a public health concern
Malnutrition has been defined as ‘a state of nutrition in which a deficiency or excess (or imbalance) of energy, protein and other nutrients causes measurable adverse effects on tissue/body form (body shape, size and composition) and function and clinical outcome’ (BAPEN, 2018a).
At the same time, globally more than 1.9 billion adults aged 18 years and older are overweight, of which 650 million are obese; in the UK, 64.3% of adults in the UK are affected. The most likely age group affected are people aged between 66 and 74 years (World Health Organization (WHO), 2018; Baker, 2019). In terms of people's health, obesity increases mortality risk, the risk of diseases such as cancer, cardiovascular disease and type 2 diabetes, and consequently brings increased costs to the NHS and society as a whole (Public Health England (PHE), 2017a).
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