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European Journal of Nutrition

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Open Access 01-02-2021 | Obesity | Original Contribution

A comparison of the satiating properties of medium-chain triglycerides and conjugated linoleic acid in participants with healthy weight and overweight or obesity

Authors: Tyler Maher, Martina Deleuse, Sangeetha Thondre, Amir Shafat, Miriam E. Clegg

Published in: European Journal of Nutrition | Issue 1/2021

Abstract

Purpose

Inconsistent evidence exists for greater satiety after medium-chain triglycerides (MCT) or conjugated linoleic acid (CLA) compared to long-chain triglycerides (LCT). Furthermore, the mechanisms are poorly understood and effects in people with a healthy weight and those with overweight/obesity have not been compared. This study aimed to compare appetite responses in these groups and examine the mechanisms behind any differences.

Methods

Fifteen participants with healthy weight (BMI: 22.7 ± 1.9 kg·m⁻²) and fourteen participants with overweight/obesity (BMI: 30.9 ± 3.9 kg·m⁻²) consumed a breakfast containing either 23.06 g vegetable oil (CON), 25.00 g MCT oil (MCT), or 6.25 g CLA and 16.80 g vegetable oil (CLA). Appetite, peptide YY (PYY), total ghrelin (TG), β-hydroxybutyrate, and gastric emptying (GE) were measured throughout. Energy intake was assessed at an ad libitum lunch and throughout the following ~ 36 h.

Results

Neither MCT nor CLA decreased ad libitum intake; however MCT decreased day 1 energy intake (P = 0.031) and the 48-h period (P = 0.005) compared to CON. MCT delayed GE (P ≤ 0.01) compared to CON, whereas CLA did not. PYY and TG concentrations were not different (P = 0.743 and P = 0.188, respectively), but MCT increased β-hydroxybutyrate concentrations compared to CON (P = 0.005) and CLA (P < 0.001). β-hydroxybutyrate concentrations were higher in participants with overweight/obesity (P = 0.009).

Conclusion

Consumption of MCT reduces energy intake in the subsequent 48 h, whereas CLA does not. Delayed gastric emptying or increased β-hydroxybutyrate concentrations may mediate this.

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Title: A comparison of the satiating properties of medium-chain triglycerides and conjugated linoleic acid in participants with healthy weight and overweight or obesity
Authors: Tyler Maher
Martina Deleuse
Sangeetha Thondre
Amir Shafat
Miriam E. Clegg
Publication date: 01-02-2021
Publisher: Springer Berlin Heidelberg
Keywords: Obesity
Obesity
Overweight
Published in: European Journal of Nutrition / Issue 1/2021
Print ISSN: 1436-6207
Electronic ISSN: 1436-6215
DOI: https://doi.org/10.1007/s00394-020-02235-y

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