S L Tey1, D E M Lee, C J Henry. 1. Professor Christiani Jeyakumar Henry, Clinical Nutrition Research Centre, Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, jeya_henry@sics.a-star.edu.sg.
Abstract
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.
RCT Entities:
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.
Entities:
Keywords:
Fruit; elderly; form; glycemic response; type
Authors: D J A Jenkins; K Srichaikul; C W C Kendall; J L Sievenpiper; S Abdulnour; A Mirrahimi; C Meneses; S Nishi; X He; S Lee; Y T So; A Esfahani; S Mitchell; T L Parker; E Vidgen; R G Josse; L A Leiter Journal: Diabetologia Date: 2010-10-27 Impact factor: 10.122