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Title: An analysis of the relationship between personal liking and consumption of nutritional supplement drinks and the role of this in providing adequate nutrition to older people
Author: Allen, Victoria J.
Awarding Body: University of Reading
Current Institution: University of Reading
Date of Award: 2013
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Malnutrition in older populations is an issue associated with increased GP visits, an increased length of hospital stay and higher mortality rates compared to none malnourished individuals of the same age. It is recommended that nutritionally complete supplement drinks are given to people who are malnourished or are at risk of malnourishment. However, these often have poor consumption rates, with older people being among the poorest consumers. The basis of this thesis was to determine the factors that affect the consumption of nutritionally complete supplement drinks in older people. This thesis addressed the following key areas: • To determine whether there was a link between liking and consumption • To investigate factors beyond liking that significantly affect consumption • To analyse the influence of consuming supplement drinks on total oral intake • To investigate liking in relation to age, acute illness and other factors associated with a deterioration in sensory perception • To devise a novel methodology to determine liking in older adults with cognitive impairment. Findings support our main hypothesis that if older adults Tike’ the nutritional supplement drinks provided then the consumption would improve although liking proved difficult to determine in older adults with cognitive impairment using current hedonic scales. Therefore, a novel method of determining liking by facial expressions was developed with relative success. There was some indication that liking of supplement drinks may be associated with some long­term changes in sensory perception and older adults socio-economic group. However, overall consumption could not be predicted accurately by a person’s liking after an initial sip. Instead, consumption was dependent on a multitude of health, psychosocial and environmental influences as well as good nursing care. It is anticipated that the outcomes of this thesis will assist in improving the consumption of nutritional supplements drinks in the older people who require them.
Supervisor: Gosney, Margot A. ; Methven, Lisa Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available