Nutrition, ageing and ill health

S. E. Gariballa, A. J. Sinclair

Research output: Contribution to journalReview articlepeer-review

90 Citations (Scopus)

Abstract

There are physical, mental, social and environmental changes which take place with ageing; for example, decreased physical activity, increase in body fat, decrease in lean body mass and consequently decreased energy intake may be associated with physiological functions that affect metabolism, nutrient intake, physical activity and risk of disease. There are now many studies which have found that undernutrition is prevalent and often unrecognized in patients admitted to hospitals and institutions. There is also evidence which links protein-energy undernutrition or its markers with clinical outcomes in acute and non-acute hospital settings and that nutritional supplements can improve outcomes in some of these settings. However, most clinically-available nutrition screening instruments lack sensitivity and specificity, and abnormal nutritional indicators may simply reflect effects of age, functional disability, or severe underlying disease. Thus, causal relationship cannot be assumed without a sufficiently powerful intervention study which adequately adjusts for the effects of non-nutritional factors, such as the number and severity of co-morbid conditions on clinical outcome.

Original languageEnglish
Pages (from-to)7-23
Number of pages17
JournalBritish Journal of Nutrition
Volume80
Issue number1
DOIs
Publication statusPublished - Jul 1998
Externally publishedYes

Keywords

  • Ageing
  • Clinical outcome
  • Ill health
  • Nutrition

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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