How To Use MCT Oil – And Why You Would Want To Use It

Even health-conscious foodies didn’t know about MCT oil – at least until recently.

They knew the differences between vegetable oil and olive oil (olive oil is healthier, but vegetables are better to cook with at high temperatures because of olive oil’s low smoke point). They knew the benefits of avocado oil (even healthier than olive oil and better to cook with). And they certainly knew the dangers of partially-hydrogenated oil (high levels of the Snidely Whiplash of nutrition, transfats).

But there was no definitely no real buzz surrounding MCT oil until the keto diet became wildly popular, and so-called “bulletproof coffee” – with MCT oil as one of its key ingredients – became a trendy morning brew.

All of a sudden, “experts” in the health and wellness world were touting the benefits of MCT oil, and not just because it was a cool ingredient you could add to your morning coffee.

Despite its newfound popularity, many keto dieters still can’t tell you exactly what MCT oil is, or why you might want to use it for weight loss. They probably can’t even tell you how to use MCT oil, except in a coffee recipe.

Let’s change that.

What are MCTs?

It’s easy to understand why MCT oil was largely unknown until the keto diet blew up. The oil only occurs naturally in a limited number of foods; the most common ones are coconuts and milk. The MCT oil you can buy today is primarily sourced from coconuts and palm kernels, and a lot of work is required to extract it.

Why would anyone even bother? To put it simply, MCTs provide an array of benefits not delivered by other types of oil. To go into more detail, we first have to explain what MCTs are.

The Chemical Structure of Fatty Acids

Fats are a combination of fatty acids, which each play important roles in the body. For example, you often hear about the beneficial effects of Omega-6s and Omega-3; they’re both fatty acids, just different types.

Caproic acid, caprylic acid, capric acid, and to a lesser extent lauric acid, are fatty acids as well. And they’re all MCTs. Here’s what that means.

At a molecular level, fatty acids are joined together in chains with carbon atoms. Almost all of the ones we consume are called “long-chain triglycerides” (LCTs) because they each contain at least 13 carbon atoms. (Triglyceride is the scientific name for fat.) By comparison, “medium-chain triglycerides” (MCTs) contain between six and 12.

And the shorter chains make a big difference.

Their length makes medium-chain fatty acids less complex, so it’s easier for the body to absorb and metabolize them. Long-chain fats have to be broken down in the digestive system before they can be used for energy (or stored). MCTs, however, are able to bypass the digestive system and are sent right to the liver instead.

What happens next is crucial to understanding MCTs and the benefits of MCT oil.

MCTs and Ketones

The body and brain normally use glucose as their energy source. The body produces glucose (also called blood sugar) when it breaks down the carbohydrates in our diet.

The liver is ordinarily responsible for producing glucose, and storing it in the form of body fat. When it doesn’t have a big supply of carbs to burn (like when we’re sleeping and not eating), it instead uses the body’s stored glucose, which is known as glycogen. 

Glucose isn’t the only type of “body fuel” that the liver can create, though. After a few days of low carbohydrate intake – and after stored glycogen has been used up – the body enters a metabolic state known as ketosis, in which the liver creates molecules called ketone bodies, or ketones for short. Why are ketones so important? Because the body can use ketones as an alternate energy source. In fact, they’re able to easily cross the blood-brain barrier to effectively power the brain.

So here’s the bottom line. MCTs quickly reach the liver, where they can deliver a quick energy boost. And if the body’s carb intake is very low, MCTs can instead be turned into ketones, increasing the liver’s production of the alternate fuel source.

That’s very important to those on the keto diet (or other forms of low-carb eating, like paleo). Let’s find out why.

Ketones and the Keto Diet

When you follow ketogenic diet guidelines you drastically reduce the amount of carbs you eat, while increasing your consumption of high-quality, healthy fats.

Some dieters may not care about the underlying reasons. They simply know they have to cut out most of the starches and sugars in their diet, while increasing the amount of meat and cheese they eat. Bread, pasta and cake are out; bacon and butter are in.

What’s more interesting, though is why you make those changes when you’re on keto – and we dropped an important clue in our discussion of MCTs.

You now know that, under the right circumstances, the liver is capable of producing ketones for the body and brain to use as an alternate energy source. And you also know that “right circumstances” basically means a lack of carbohydrates to make glucose – exactly what the low carb intake mandated by the keto diet is designed to produce.

But here’s the big question: when the liver switches to ketone production, how does it produce those ketones?

It burns stored body fat – the annoying fat you want to get rid of when you’re trying to lose weight. And fat burning is the missing link in our story.

Keto helps dieters lose weight because the body is forced to burn stored fat for energy, instead of carbs. That also explains why keto guidelines drastically restrict carb intake: the diet forces the body to remain in ketosis, where it will burn fat to produce ketones.

And MCTs are able to help the process. How do you use MCT oil for that purpose?

Glad you asked.

Where MCT Oil Comes From

Most nutritional sources that we think of as “healthy,” like avocado, nuts, seeds, meat and fish are rich in LCTs – but contain few or no MCTs.

By contrast, high levels of MCTs are found in just a few food sources: coconut, palm kernels (the edible seeds in palm trees), and milk (including goat’s milk and believe it or not, human breast milk). About seven percent of the fats in milk and milk products like butter, cheese and yogurt are MCTs; they’re about eight percent of the fats in palm kernel oil.

Oil extracted from coconuts contains nearly twice that amount of medium-chain fats, which is why the most-common source of MCT oil is coconut oil. And yes, there is a difference between the two. 

Coconut oil has health benefits and is worth using for many reasons, but it still only contains about 15% MCTs; it’s still loaded with long-chain fatty acids. To get the full effect of medium-chain fats, it’s necessary to separate the MCTs from the LCTs.

MCT oil is extracted from coconut oil by a process called fractionalization. It removes everything but the oil’s caprylic and caproic acids, so only those MCTs are contained in pure MCT oil. Palm kernel oil (which is different from palm oil) is often used to produce MCT oil as well, for one simple reason: the allergens in coconut aren’t present in palm kernels. Dairy products aren’t used to make MCT oil, because it’s very difficult to extract MCTs from them.

So don’t be confused when you’re ready to try MCT oil. Even though it’s often described as “MCT coconut oil” or “MCT oil (from coconut),” it’s not the same as coconut oil. Pure MCT oil – not coconut oil – is what you want when you want to use MCTs for health reasons.

Health Benefits of MCT Oil

A surprising number of benefits associated with the use of MCT oil have been discovered by researchers. Not all of them have been definitively proven, but there’s plenty of evidence suggesting that MCT oil is indeed quite good for you – in moderation. We’ll get to that last part later.

Weight Loss

The most obvious benefit is the one we’ve been discussing in general terms: weight loss.

We don’t need to belabor the point that MCT oil can apparently help keto dieters stay in ketosis, maximizing their reliance on ketones for energy and the fat burning it encourages. To be honest, virtually an entire industry has been built on the premise of selling MCT oil to people following the ketogenic diet.

However, that’s not the only way that MCT oil can seemingly encourage weight loss.

Studies have shown that consuming MCT oil makes you feel fuller, meaning you won’t be as hungry as usual – and meaning you’ll want to eat less. That’s because MCTs encourage the release of two hormones that promote satiety (feeling full), leptin and peptide YY. One study called the reduction in appetite after taking MCT oil “acute.”

There are other potential benefits related to weight loss, too. It appears that MCT oil helps support gut health, particularly in those who are obese but otherwise healthy. By encouraging the proliferation of “good” bacteria, MCT oil seems to increase the possibility of losing weight.

When we consume LCTs, any excess triglycerides are stored in the body as fat. LCTs aren’t; they go straight to the liver where they are used as a source of energy. And finally, MCTs contain fewer calories than LCTs. That doesn’t make a huge overall impact on weight loss, but every little bit helps.

Some research supports the theory that consuming MCT oil, even when you’re not on a keto diet, helps with weight management. The study most often cited showed that the oil helped mice lose weight, but there is also research showing a positive association between medium-triglyceride consumption and lower body weight in humans as well.

Exercise Endurance and Performance

The extra energy boost and fat burning we’ve discussed might certainly help athletes and workout warriors in the gym, on the track, or on the road. There’s another apparent athletic benefit to the use of MCT oil, though: it can apparently lower lactate levels in the body.

Why is that important? Lactate levels grow throughout a workout, since the body’s muscles produce lactic acid during exercise. Those high lactate levels are what lead to the cramps and aches commonly associated with lengthy exertion. The seeming ability of MCTs to lower lactate levels lets people exercise for longer periods of time, theoretically burning more fat. Evidence on MCT oil’s ability to improve performance, however, is still being evaluated.

Diabetes

On a somewhat-related subject, MCT oil appears to help diabetics manage their disease. Much of that benefit seems to be due to MCT effects on fat burning and storage, since both play a major role in the factors that affect the progression of diabetes.

One study reported that type 2 diabetics who took insulin and consumed MCTs needed considerably less sugar to keep their blood sugar levels in balance than those who consumed LCTs. Other research found that regular use of MCT oil helped study participants lower their weight, while their insulin resistance (a key factor in the development and progression of diabetes) was lowered.

Heart Health Markers

MCT oil can apparently help with a lot more than weight and related issues. Its benefits seem to cover much of the health and wellness spectrum.

For example, two of the risk factors for heart disease are obesity and high cholesterol levels. We’ve already dealt with the weight issue quite a bit, but MCT oil has also been shown to be able to improve lipid panels, increasing “good” cholesterol and overall cholesterol levels, and decreasing so-called “bad” cholesterol at the same time.

And a more extensive animal study reported improvements for a number of risk factors associated with cardiovascular disease after administration of MCTs.

Cognitive Function

Proponents of MCT oil use have suggested for a number of years that it can help boost brain function and mental clarity.

Much of that belief stems from the use of ketogenic diets to successfully control certain types of epilepsy over the last century. There’s even evidence that MCTs may be even more effective than medication at reducing or preventing epileptic seizures in some patients.

However, there has been research indicating that the effectiveness of MCT oil may go much further than that.

One study found that type 1 diabetics suffering acute cognitive problems during hypoglycemic incidents showed vastly improved brain function after being administered MCTs. Another reported that ingestion of MCT oil boosted memory function in patients with mild cognitive impairment. And there’s also research showing that MCT oil combined with a gluten-free keto diet may help some children on the autism scale.

Some of the most convincing evidence, though, involves patients with cognitive decline due to Alzheimer’s disease. Administration of MCTs was followed by significant improvement in brain function among patients suffering with mild-to-moderate Alzheimer’s symptoms.

Antibacterial and Antifungal Properties

It seems that almost every “good for your health” supplement that you read or hear about is supposed to have powerful antibacterial and antifungal properties. Add MCT oil to that list. MCTs have been shown to possess the ability to help the body fight some of the most stubborn bacteria and fungi around.

OK, so you’re convinced – MCT oil is one of those “good for your health” supplements worth trying.

How do you use it?

How to Use MCT Oil

The most common way that people consume MCT oil is the one we alluded to at the start of this discussion: they put it into their coffee.

Bulletproof Coffee

“Bulletproof coffee” is the name that’s normally used to describe the keto concoction that combines black coffee, MCT oil and either grass-fed butter or ghee (a type of clarified butter).

The name was invented by a businessman and internet marketer who turned keto-friendly coffee into an international craze; he owns a number of companies selling “Bulletproof” products. The idea, however, is based on the “butter coffee” that’s been drunk in nations like Ethiopia and Nepal for many centuries.

Why put butter and MCT oil into coffee? Because they each can provide benefits for keto dieters. We’ve talked at length about the reasons to supplement a ketogenic diet with MCT oil; butter or ghee, however, are there for a different reason. They’re high-quality healthy fats, the macronutrient used to replace carbs in the keto diet.

This keto coffee is easy to make, simply by blending the three ingredients (including 1-2 tablespoons of butter or ghee, and 1-2 teaspoons of MCT oil) until they’re the consistency of a latte. Most people drink it to start their day – and that can cause an unforeseen problem for those trying to lose weight.

Bulletproof coffee is filling. Really filling. That’s why many dieters end up just drinking a cup of keto coffee instead of eating a real breakfast. Any dietitian will tell you that by doing that, they miss out on the important nutrients they’d get from a healthy meal consisting of protein, fruits and veggies. They also consume the recommended daily maximum of saturated fat (yes, MCTs are saturated fats) in just one cup of bulletproof coffee.

If they have more than one keto coffee per day? That’s not only unhealthy, but it might end up sabotaging their weight loss efforts. Moral of the story: if you’re going to go the bulletproof route, stick with one per day. And remember, you can still add MCT oil to coffee, without the extra fat.

Other Ways to Use MCT Oil

The benefits of MCT oil can be realized without drinking coffee at all.

  • Try a ready-to-drink beverage that already contains it: A tasty keto coffee substitute like Super Coffee already contains MCT oil, along with zero-carb monk fruit sweetener, with drastically lower levels of saturated fat and calories than bulletproof coffee.
  • Add it to other beverages: Smoothies are a popular “delivery mechanism” for MCT oil, and it can be added to virtually any other beverage, including tea. If you’re on keto, be careful what you use to make smoothie bases; most fruits are off-limits or strictly limited. There are lots of great recipes for keto smoothies online, using ingredients like avocado, peanut butter, cocoa powder, coconut milk and small amounts of berries.
  • Use it to make “fat bombs”: Fat bombs are small, tasty snacks made with keto-friendly ingredients, designed to provide quick energy, satisfy a sweet tooth, and deliver a shot of healthy fat at the same time. Again, there are lots of recipes online.
  • Use it to make salad dressings or sauces: MCT oil is virtually tasteless, so it won’t ruin the flavor of your favorite dressing. It will just add health benefits to the mix.
  • Take it straight: A tablespoon or two of MCT oil will provide all of the oil’s benefits, without the need to figure out what food or drink you should mix it with. Start slow, with a teaspoon, and increase from there. One warning: taking MCT oil on an empty stomach can lead to an upset stomach.

While we’re on the subject of warnings, we should mention two other potential drawbacks of using too much MCT oil. Consuming more than 4-5 tablespoons per day can cause liver issues (primarily, a troublesome backlog of fat in the liver that could eventually cause damage). And going over 2-3 tablespoons per day can actually cause the release of hormones that make you feel hungry – never a good thing, when you’re trying to lose weight with the help of MCT oil.

Written by Ben Knox

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