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Open AccessArticle

Differential Effects of Monounsaturated and Polyunsaturated Fats on Satiety and Gut Hormone Responses in Healthy Subjects

Clinical Nutrition Research Centre (CNRC), Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), 30 Medical Drive, Singapore 117609, Singapore
Department of Endocrinology, Tan Tock Seng Hospital, Singapore 308433, Singapore
Cardiovascular and Metabolic Diseases Program, Duke-NUS Medical School, Singapore 169857, Singapore
Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 17599, Singapore
Author to whom correspondence should be addressed.
Foods 2019, 8(12), 634;
Received: 7 November 2019 / Accepted: 15 November 2019 / Published: 3 December 2019
(This article belongs to the Section Food Nutrition)
The difference between fat saturation on postprandial hormone responses and acute appetite control is not well understood. The aim of this study was to compare the postprandial ghrelin, gastric inhibitory polypeptide (GIP) and glucagon-like peptide-1 (GLP1) response and subjective appetite responses after isoenergetic high-fat meals rich in either monounsaturated (MUFAs) or polyunsaturated fatty acids (PUFAs) in healthy Chinese males. A randomized, controlled, single-blinded crossover study was conducted in 13 healthy Chinese men. Two high-fat meals (64% of energy) rich in MUFAs or PUFAs were tested. Total ghrelin, GIP and active GLP1 and visual analog scale (VAS) were measured over 4 h. Ghrelin was reduced greater after MUFA compared to PUFA at the beginning of the meal (at 30 and 60 min) and was significantly negatively correlated with subjective VAS for preoccupation for both MUFA and PUFA meals. No significant difference for ghrelin 240 min incremental area under the curve (iAUCs) were found. MUFA induced higher GIP response than PUFA. GIP was associated with all the VAS measurements except preoccupation for MUFA meal. No difference was found for GLP1 between two meals, nor was GLP1 associated with VAS. In conclusion, the results demonstrate that ghrelin, GIP and VAS respond differently to MUFA and PUFA meals. Ghrelin and GIP, but not GLP1, were associated with acute appetite control, especially after MUFA meal. View Full-Text
Keywords: high-fat meals; fat saturation; hormone response; satiety high-fat meals; fat saturation; hormone response; satiety
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Sun, L.; Goh, H.J.; Govindharajulu, P.; Khee-Shing Leow, M.; Henry, C.J. Differential Effects of Monounsaturated and Polyunsaturated Fats on Satiety and Gut Hormone Responses in Healthy Subjects. Foods 2019, 8, 634.

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