"Before we can begin our comparison of MCT oil and coconut oil, the first thing we have to do is define “MCT.” MCTs stands for medium chain triglycerides. Another term for “triglycerides” is fatty acids. So another way of referring to MCTs is MCFA (medium chain fatty acids).
“Medium” references the chain length of the fatty acids. Oils can contain short chain, medium chain, or long chain fatty acids. Most oils are a combination of all three types.
Medium chain fatty acids contain between 6 and 12 carbon chains . They are:
C6 – Caproic Acid
C8 – Caprylic Acid
C10 – Capric Acid
C12 – Lauric Acid
These medium chain fatty acids are known to have tremendous health benefits.
C6 through C10, although found in coconut oil, are more predominant in other places in nature
- See more @ Health Impact News
Coconut oil is good for you. Eating it provides cheap and abundant lauric acid, a useful oil that is sold as an MCT oil even though it does not act like an MCT in the body.
In the US, coconut oil and MCT oil manufacturers are legally allowed to claim that lauric acid is an MCT because chemists named it that way, even though biochemists recognize that it does not act like other true biological MCT oils.
If you are counting on plain coconut oil or “MCT-labeled” oil to get enough useful MCTs, think again and check the label: odds are you’re getting very few of the potent shorter chain MCTs (C8 and C10), and lots of the cheaper but ineffective lauric acid.
See more @ Bulletproof Exec. - Has tons of info about MCT