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MCT type	Properties and notes
C6 (caproic acid)	The shortest MCT. Rapidly metabolised but has a strong, unpleasant taste and can cause gastric discomfort. Rarely used in supplements.
C8 (caprylic acid)	Generally the most ketone-producing of the common MCTs. Rapidly absorbed and converted into ketones — the primary MCT source in ButterFat Keto.
C10 (capric acid)	Also ketogenic, though more slowly than C8. Often blended with C8 in mixed MCT oils.
C12 (lauric acid)	The longest MCT and the main fatty acid in coconut oil. Behaves more like a long-chain fat, with a lower ketogenic effect than C8 or C10.