Document Detail

Effect of liquid dietary supplements on energy intake in the elderly.
MedLine Citation:
PMID:  11976171     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Undernutrition is a risk factor for increased mortality in older adults. Therapeutic intervention includes the administration of liquid dietary supplements. OBJECTIVE: We investigated the effect of liquid dietary supplements on satiation, satiety, and energy intake in older adults. DESIGN: This study had 2 phases in a within-subject, repeated-measures design. The energy intake of 15 elderly (aged >70 y) and 15 younger (aged 20-40 y) healthy subjects was measured after 4 liquid preloads: water, high fat, high carbohydrate, and high protein. The preloads were administered within 5 min of a test meal in phase 1 and >or=60 min before the test meal in phase 2. Palatability, fullness, and hunger were assessed by using visual analogue scales. RESULTS: Mean energy consumption of the test meals was significantly lower in the older than in the younger subjects (P = 0.001), as was mean macronutrient consumption of fat and carbohydrate (P = 0.002 and 0.001, respectively). Mean energy intake and macronutrient consumption were higher in phase 2 than in phase 1 in both older and younger subjects (P < 0.05). Satiety lasted longer in older than in younger subjects after the high-protein and high-fat preloads (P = 0.001). CONCLUSION: In the elderly, administration of dietary supplements between meals instead of with meals may be more effective in increasing energy consumption.
Margaret-Mary G Wilson; Raj Purushothaman; John E Morley
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  75     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  2002 May 
Date Detail:
Created Date:  2002-04-26     Completed Date:  2002-05-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  944-7     Citation Subset:  AIM; IM    
Division of Geriatric Medicine, St Louis University Health Sciences Center, St Louis, MO 63104, USA.
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MeSH Terms
Aging / physiology*
Analysis of Variance
Dietary Carbohydrates / administration & dosage
Dietary Fats / administration & dosage
Dietary Proteins / administration & dosage
Dietary Supplements*
Drug Administration Schedule
Energy Intake*
Nutritional Physiological Phenomena
Satiety Response
Water / administration & dosage
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 7732-18-5/Water

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