Key Takeaway
MCT oil modestly increases total cholesterol and LDL compared to other vegetable oils, but does not significantly affect HDL or triglycerides in randomized trials.
Summary
This systematic review and meta-analysis of randomized controlled trials assessed the impact of MCT oil consumption on blood lipid profiles. The authors aggregated data from trials comparing MCT oil to other dietary fats, primarily vegetable oils containing long-chain triglycerides.
The pooled analysis found that MCT oil consumption was associated with modest increases in total cholesterol and LDL cholesterol relative to comparator oils. However, MCT oil did not significantly affect HDL cholesterol or circulating triglyceride levels. These findings suggest that while MCTs are rapidly metabolized, their effects on blood lipids may not be entirely favorable compared to unsaturated vegetable oils.
The authors highlight the importance of considering the comparator fat when evaluating MCT oil health effects. When replacing saturated fats, MCTs may be relatively neutral, but when replacing unsaturated oils, they may have less favorable lipid effects. The clinical significance of the observed changes remains modest.