Research
Energy balance
MCT consumption increases postprandial energy expenditure and fat oxidation in the short term (2 days), but this effect diminishes after 28 days of continuous consumption.
You might notice a slight boost in calorie burning when you first start using MCT oil, but this effect fades after a few weeks. Don't rely on it for long-term weight management. It's a minor tool, not a primary strategy.
GoodQualifiesHIGH confidence
Average energy expenditure was 0.04 ± 0.02 kcal/min greater (p < 0.05) on day 2 and 0.03 ± 0.02 kcal/min (not significant) on day 28 with FctO compared with OL consumption. Similarly, average fat oxidation was greater (p < 0.052) with FctO compared with OL intake on day 2 but not day 28.
Why this rating
Controlled feeding study with precise metabolic measurements.
Source
Medium‐Chain Triglycerides Increase Energy Expenditure and Decrease Adiposity in Overweight Men
Marie‐Pierre St‐Onge et al. · Obesity Research · 2003
DOI 10.1038/oby.2003.53
crossover · n=24Cited 274×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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