MCT oil is not the same as coconut oil, though coconut oil is typically the raw material used to make it. MCT oil is a concentrated extract that contains only specific fatty acids pulled from coconut oil (or sometimes palm kernel oil) through an industrial refining process. Coconut oil, by contrast, is the whole fat pressed from coconut flesh, containing a much broader mix of fatty acids.
What Makes Them Different
The difference comes down to which fatty acids each product contains and in what proportions. Coconut oil is roughly 63% medium-chain fatty acids by composition, but it’s dominated by one in particular: lauric acid, which makes up about 47.6% of coconut oil’s total fat. The two shorter-chain fats that give MCT oil its reputation, caprylic acid (C8) and capric acid (C10), account for only about 8.6% and 6.3% of coconut oil respectively.
Commercial MCT oil flips those ratios. Manufacturers use a process called fractionation to isolate caprylic and capric acid while removing most or all of the lauric acid and long-chain fats. The result is a product that’s almost entirely C8 and C10 fatty acids, typically in a 60/40 or 70/30 split depending on the brand. Some MCT oils are pure C8.
Why Lauric Acid Is the Dividing Line
Lauric acid sits in an unusual middle ground. Chemically, its 12-carbon chain qualifies it as a medium-chain fatty acid. But inside your body, it doesn’t behave like one. Shorter medium-chain fats (C8 and C10) are absorbed quickly through the gut wall and travel directly to the liver through the portal vein, where they’re rapidly converted into energy. Lauric acid, despite its classification, gets packaged and transported more like a long-chain fat, moving through the lymphatic system before reaching the bloodstream.
This distinction matters because the purported benefits of MCT oil, faster energy availability and easier digestion, depend on that direct route to the liver. Since coconut oil delivers nearly half its fat as lauric acid, it doesn’t produce the same rapid metabolic effects that concentrated MCT oil does. That said, lauric acid has its own properties, including antimicrobial activity, so coconut oil isn’t inferior. It’s just doing something different.
How MCT Oil Is Made
Producing MCT oil from coconut oil requires breaking the whole fat apart and selectively recombining the pieces. The process typically starts with a chemical reaction called transesterification, which separates the fatty acids from their glycerol backbone. From there, a technique called short-path distillation isolates the desired chain lengths. This works by heating the separated fatty acids under a near-vacuum: shorter chains evaporate at lower temperatures and are captured on a cooled surface, while longer chains stay behind. The isolated C8 and C10 fatty acids are then reattached to a glycerol molecule to form the finished MCT oil.
This is why MCT oil is always a refined, processed product. There’s no “cold-pressed” or “virgin” MCT oil. If a label says MCT oil, it has been through industrial fractionation.
Cooking and Heat Tolerance
Coconut oil handles heat better than MCT oil. Coconut oil has a smoke point of about 350°F (177°C), making it suitable for sautéing and moderate-heat cooking. MCT oil’s smoke point is lower, around 302°F (150°C), which limits its usefulness at the stove. Most people use MCT oil unheated, blended into coffee, smoothies, or salad dressings.
Coconut oil also has a distinct coconut flavor and solidifies below about 76°F (24°C). MCT oil is flavorless, odorless, and stays liquid at room temperature, which makes it more versatile as an additive but less useful as a cooking fat.
Digestive Tolerance and Dosing
MCT oil’s rapid absorption is a double-edged sword. Because it moves so quickly into the liver, taking too much at once commonly causes cramping, bloating, and diarrhea. If you’re new to MCT oil, starting with one teaspoon and increasing gradually over a week or two lets your gut adjust. The upper limit for most people falls between 4 and 7 tablespoons per day (roughly 60 to 100 mL), split across meals rather than taken all at once.
Coconut oil rarely causes the same digestive issues because its fatty acids are absorbed more slowly. You can cook with it in normal amounts without the cramping that a comparable dose of MCT oil might trigger.
Which One to Use
Your choice depends on what you’re after. If you want a cooking fat with medium-chain fatty acids and don’t mind a coconut flavor, coconut oil works well. It provides a broad spectrum of fatty acids, holds up to moderate heat, and costs less per serving than MCT oil.
If you specifically want the rapidly absorbed C8 and C10 fats, whether for a ketogenic diet, athletic performance, or as a calorie-dense supplement that’s easy to digest, MCT oil is the more targeted product. You’d need to eat a large amount of coconut oil to get the same quantity of caprylic and capric acid that a single tablespoon of MCT oil delivers. For context, roughly 15% of coconut oil is C8 and C10 combined, versus nearly 100% in MCT oil.
Some people use both: coconut oil for cooking and MCT oil as a supplement. They’re related products with meaningfully different compositions, and one doesn’t replace the other.