Fruit form influences postprandial glycemic response in elderly and young adults

Objectives This study compared the effects of consuming different forms (bite size, puree) and two fruit types (guava, papaya) on glycemic response (GR) in elderly and young adults. Design This study was conducted using a randomized, crossover design. Participants Nineteen healthy participants (9 el...

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Bibliographic Details
Published in:The Journal of nutrition, health & aging health & aging, 2017-10, Vol.21 (8), p.887-891
Main Authors: Tey, S. L., Lee, D. E. M., Henry, Christiani Jeyakumar
Format: Article
Language:English
Subjects:
Adult
Aging
Cross-Over Studies
Female
Fruit - metabolism
Fruits
Geriatrics/Gerontology
Glucose
Glycemic Index - physiology
Humans
Male
Medicine
Medicine & Public Health
Middle Aged
Neurosciences
Nutrition
Older people
Postprandial Period
Primary Care Medicine
Quality of Life Research
Young Adult
Young adults
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Summary:Objectives This study compared the effects of consuming different forms (bite size, puree) and two fruit types (guava, papaya) on glycemic response (GR) in elderly and young adults. Design This study was conducted using a randomized, crossover design. Participants Nineteen healthy participants (9 elderly, 10 young adults) were recruited from the general public in Singapore. Intervention: Participants consumed glucose (reference food) on three occasions and test fruits (guava bites, guava puree, papaya bites, and papaya puree) on one occasion each. Measurements Blood glucose was analyzed prior to consuming the test food, at 15, 30, 45, 60, 90 and 120 minutes after food consumption. Results The incremental area under the blood glucose response curve (iAUC) over 120 minutes for all the treatments was significantly lower than glucose (all P < 0.001). All fruit forms and types studied were low glycemic index (GI) (guava bites: 29; papaya bites: 38; papaya puree: 42; guava puree: 47), albeit a significant difference in GI between the treatments was found (P = 0.003). Elderly exhibited significantly greater GR than young participants (P = 0.019). Conclusion Although fruit form influences GR in the elderly and young adults, all fruit types and forms studied were found to be low GI. This study indicates that fruits are a valuable source of nutrient irrespective of the form of delivery in elderly and young adults. This study was registered at www.anzctr.org.au as ACTRN12614000655640.
ISSN:1279-7707
1760-4788
DOI:10.1007/s12603-017-0880-9