Home / Best MCT Oil for Ketosis Review (2019) | Top Brands [Full Guide]

Best MCT Oil for Ketosis Review (2019) | Top Brands [Full Guide]

You can live without MCT Oil to get into ketosis and thrie on Ketogenic diet


Your body definitely needs the best types of fats to thrive.

And for that MCT oil supplements may actually help!

Gust GO on Amazon and type “MCT oil supplements” and you’ll find over 400 results.

That’s a lot,so…

Product LineI tested some of these oils and, along with my team, I’ve read about all available reviews.

The TOP 7 products from top brands are carefully selected and researched.

I’ll also provide nformation you need about MCTs, how they work, and what factors you should consider when getting the best MCT oil.

Plus, I’ll answer some of the most burning questions on relationship between MCT oil and weight loss, MCT oil and fasting, as well as some basic difference between MCT oil and coconut oil.

Let’s dive in…

What is MCT Oil?

MCT is short for medium chain triglycerides. These saturated fatty acids are easy to break down in your body, so they convert into energy quicker than long-chain triglycerides.

What is MCT Oil

MCT is a source of pure, fast fuel derived from fat that makes you feel more energetic, stronger, and bigger stamina.

But more on the benefits of MCT oil below.

Best MCT Oil for Ketosis Brands (Review)

With that in mind, let’s see what the top-rated MCT oils on the market are:

1. Perfect Keto MCT Oil Powder – #1 MCT Oil for Weight Loss & Ketosis

Perfect Keto

Perfect Keto (PK) is regarded as the TOP Rated brand on the market, whether you buy it in oil formula or soft gel.

The MCT Oil Powder from Perfect Keto contains only clean ingredients and is marketed as instant fuel for the body and mind.

The main ingredient is 11 grams of medium-chain triglycerides per portion, which are quickly absorbed and turn into instant energy.

This fatty acid derived from coconut oil is a faster energy source than other long-chain fatty acids, so you can stay sharp and enter ketosis quickly.

Why is Perfect Keto MCT Oil Powder the Best for Fat Loss?

  • As your body begins ketosis, you start to burn fat for energy, so your fat tissue becomes smaller. That way, you lose fat weight instead of water weight.
  • Most fad diets leave you tired and cranky, so it’s easy to seek comfort food and give up on your fat loss journey. The Perfect Keto MCT Oil Powder makes you feel sharper and more energetic, so it’s easier to stick to your weight goals.


Other benefits of the PK MCT Oil Powder are:

  • Awesome taste. This powder comes in delicious vanilla, chocolate, salted caramel, and Matcha Latte, but you can also get the unflavored version.
  • Easy to mix. This powder doesn’t clump, whether you mix it with cold water or a warm drink.
  • It’s a nutritious drink. With 70 calories/ cup, you can easily use this drink as a meal replacement or as a filling post-workout snack.
  • It’s vegetarian and Paleo-friendly. The only other ingredients except for the MCTs are Acacia fiber, Stevia, and Vanilla powder extract.
  • It helps your digestive system. Acacia is a natural prebiotic that helps good gut bacteria thrive so they can fight the bad bacteria.
  • You can use it any time of day. PK Products helps curb your hunger, satisfy your macros, and it helps you focus at work.
  • It helps stick to your keto. One serving contains 7g of fat and 1g of carbs.

That said, PK has a couple of disadvantages:

  • It’s fairly expensive compared to other MCT supplements, but you pay for quality.
  • It has no protein, so you can’t use it to build mass.

2. 100% Pure MCT Oil Softgels by Perfect Keto

Perfect Keto 300 SoftGels

Why is the 100% Pure MCT Oil Softgel the Best For Ketosis?

  • It works fast. This product is 100% MCT from coconut oil, in the form of C8 Caprylic Acid. This is one of the cleanest forms of triglycerides, meaning it’s the fastest one absorbed by your body. As such, your body will start ketosis immediately.
  • It keeps your energy levels up. New keto-ers go through the dreaded keto flu, when they feel down, fuzzy-headed and tired, so they seek carb-filled comfort foods. But if you’re energetic and happy, you don’t need that anymore.
  • It supports digestion. Starting a keto diet means your body needs to produce “tools” to burn fat cells instead of glucose. These tools are called enzymes – lipase is one of them. Until then, you may experience GI disturbances. But the 100% C8 MCT Oil formula is perfect for supporting your digestive system because C8 kills assists good bacteria.
  • You will feel sharp and clear-headed. That way, you can focus on your work and won’t seek sugar-filled energy drinks or sweets.
  • It keeps your belly full. If you’re satisfied, you can stick to your keto-friendly macros instead of going over the limit.

That said, it’s easy to notice that the 100% Pure MCT Oil Softgel from PK has other advantages:

  • Promotes fat loss
  • Clean formula with no fillers or additives
  • Gluten-free
  • Dairy-free
  • Flavorless, odorless and with no oily residue
  • Can be used any time of day
  • Can be mixed into a variety of foods and drinks, from salads to smoothies


There are a few cons, as well:

  • Expensive.
  • Bad bottle design. The mouth is too wide, so you can easily spill too much MCT oil in your drink or get the bottle dirty.
  • Some people might experience diarrhea.

3. Onnit MCT Oil With Pure C8 – Best Organic MCT Oil


Why is Onnit MCT Oil the best organic MCT oil?

  • It’s organic. It has no additives, fillers, or artificial flavors, and no gluten.
  • It’s vegan-friendly. This MCT oil has no traces of dairy, eggs, or meat.
  • It’s tasteless and odorless. You can easily mix it in your coffee, tea, and smoothies or add to your salad. If you want a flavored version, Onnit has plenty of those, from creamy coconut to creamy vanilla, cinnamon swirl, creamy strawberry or pumpkin spice.
  • It contains a mix of Lauric, Caprylic, and Capric Acid. These MCTs are easily absorbed in your intestine to kickstart ketosis and give you an energy boost. Although pure 100% C8 MCTs are faster to absorb, this mixture has important health benefits: promotes good cholesterol, fights infections, gives you good strength for your workouts, and assists in fat loss.
  • It helps stick to your keto diet. One serving contains 130 calories and 14g of fat, with no carbs, so this is a good MCT oil product.


But, Onnit MCT Oil ranks third in this review.

Why isn’t it a perfect product?

  • It doesn’t trigger ketosis as quickly as the PK products
  • It doesn’t taste as good (important keto diet aspect), and it isn’t as easy to mix as PK

4. Bulletproof Brain Octane Oil – Top MCT for Coffee Lovers

Bulletproof Octane Oil

The Bulletproof Brain Octane Oil is the great MCT oil to add in your coffee (bulletproof coffee) because:

  • It’s easy to mix and taste in coffee. That’s exactly what you look for in the perfect MCT oil for your drink.
  • It results from a specialized triple distillation process. During this process, the MCT Oil is processed with just water, heat, and pressure, so the oil is quickly absorbed to give you a huge vitality boost.
  • It enhances the good effects of caffeine and reduces the bad. The feeling you get after drinking Bulletproof Brain Octane Oil lasts for hours, and you won’t feel the crash-and-burn after the caffeine wears out.
  • It gives you mental clarity. Most people say that coffee gives them a mental fog, if they drink too much of it, too soon in the morning or without having breakfast. Bulletproof Brain Octane Oil doesn’t have this negative effect on your brain because it’s made with pure C8.
  • It can replace your breakfast or an afternoon snack. If you don’t have time for breakfast before your morning coffee, one serving contains 130 calories and 14g of saturated fats, so you can stick to your ketogenic macros.

Supplement Facts

There are other advantages to Bulletproof Brain Octane Oil:

  • It contains 100% C8 Caprylic Acid, the fastest triglycerides absorbed in your body so you can kickstart ketosis immediately.
  • It has antiviral properties.
  • It’s expeller-pressed instead of extracted with cheap chemical solvents.
  • It’s 100% coconut-sourced.
  • It’s entirely made in the USA.
  • It’s a delicious, filling snack or meal replacement, so you don’t have to get a chocolate donut with your morning coffee.
  • There are different product sizes available, and you can sample the 3 oz bottle before getting a bigger one.


What Are the Cons?

  • It’s pricey.
  • The packaging is prone to spilling.
  • If you’re drinking it straight from the bottle instead of mixing it with coffee, you might experience cramps or diarrhea because C8 is very powerful. This happens especially if you have GI problems or if you’re on an intermittent fast.

5. Viva Naturals MCT Oil – Best for Brain Health

Viva Natural's

Why is this a good USDA organic MCT oil for brain health? After all, plenty of the products I’ve discussed above promote energy, a positive mental state, and reduce brain fog.

  • Each serving contains 13g of MCT oil, derived from 100% organic coconuts. That means you get a blend of 56% C8, 38% C10, and 6% Lauric acid.
    • C8 Caprylic acid and C10 Capric acid are rapidly transformed into ketones, for a quick energy boost and mental clarity. As these make up for 94% of the Viva Naturals MCT Oil, this product makes you feel sharp just like other products above.
    • Lauric acid reduces bad gut bacteria. What does gut bacteria have to do with brain health? A lot. According to research, good gut bacteria protect against anxiety, regulate your mood, improve your immune system, and regulate your appetite, so food stops being a reward.
  • One serving contains 130 calories and 14 grams of fat. That means you get a steady intake of energy from what could be a good snack, so your belly is full and your mood is better.
  • Coconut oil improves stamina and mental health. In 2008, Dr. Mary Newport found that coconut oil helped alleviate her husband’s Alzheimer’s disease symptoms. Although there is no comprehensive research to demonstrate that coconut oil can improve memory and mental capacity, there is plenty of anecdotal evidence that suggests that.

Besides, Viva Naturals Oil has other advantages:

  • It’s easy to mix in a drink or a salad.
  • It’s odorless and tasteless.
  • It doesn’t contain fillers, additives, or artificial flavors.
  • Gluten-free.
  • Vegan.
  • Money-back guarantee.


The main downside to Viva Naturals is that it contains Maltodextrin, so a 9g serving contains 4g of net carbs, meaning Viva Naturals Oil:

  • Is good for low-carb diets, but you need to count your macros if you want to follow a pure ketogenic diet.
  • Can cause an insulin spike, which might affect people with diabetes.

6. Nature’s Way 100% Potency Pure Source MCT Oil – Good Pure Oil

Nature's Way 100 Percents

Nature’s Way Premium MCT oil is a good pure oil because:

  • It’s made with quality ingredients.
  • It’s thoroughly researched and tested.
  • Nature’s Way MCT sticks to GMP.
  • It contains 100% MCTs extracted from the highest-quality coconuts.
  • It contains no toxic fillers or GMOs.
  • It’s vegetarian.
  • This coconut oil contains a mix of Caprylic and Capric acid, which are antiviral, offer instant energy, reduce brain fog, and make your skin shine.
  • It’s easy to mix into shakes, coffee, or gulp down a tablespoon.
  • One serving contains 130 calories and 14 g saturated fat, so this oil helps stick to your keto macros and to lose weight.


The Cons:

  • While Nature’s Way supports mental clarity and helps you focus, it doesn’t give a huge energy boost suhc as PK. That’s because it only contains about 60% Caprylic acid.
  • The 6% Lauric acid doesn’t transform into ketones.
  • It might cause GI distress, especially if you take more than one tablespoon per day.

7. Left Coast Performance MCT Oil

Left Coast Performance

Here are the pros of Left Coast Performance MCT Oil:

  • It’s made from pure organic coconut oil.
  • It doesn’t use palm oil (palm kernel oil)
  • It contains a mix of 60% C8 Caprylic acid and 40% C10 Capric acid. These are the fastest absorbed medium-chain triglycerides, so you start ketosis quickly and get more energy.
  • C8 and C10 have antiviral properties, assist weight management, reduce stomach acidity, and regulate cholesterol.
  • It’s vegan and contains no GMOs.
  • It’s low in calories.
  • It’s made from fresh coconuts, which reduces the chances of stomach discomfort.

What is Unique About Left Coast MCT Oil?

  • It’s triple-filtered to make sure you get a pure, high-quality products
  • Even though Left Coast is a small company, they buy big enough volumes of coconut oil, to make sure they get a good price for what they buy. They don’t overinflate their prices either, so you get a good value-for-money product
  • Left Coast offers a full refund if you don’t like their MCT Oil


There Are a Few Cons to the Left Coast MCT Oil:

  • As it’s not 100% C8, it works slower than Perfect Keto to bring you into ketosis, and it doesn’t give you a huge energy boost.
  • Some people complain about its oily aftertaste.
  • If you start with the recommended dose, you might get diarrhea. Better safe than sorry, so start with half a dose.

What Are The MCT Oil Benefits? What to Look For?

There are a lot of documented benefits to MCT oil:

  • Some studies show it can assist in fat loss, but only if you do the work, restrict your macros, and exercise
  • It helps you diminish your fat stores
  • A keto diet rich in MCT is better than one rich in LCT (long-chain triglycerides) when it comes to athletic performances
  • Some studies show that MCTs can help reduce bad cholesterol
  • MCTs, decrease blood sugar levels
  • Better cognition and Increased energy expenditure
  • MCTs, increase your blood ketone levels, which are a better energy source for your brain health
  • MCTs can also reduce brain fog and help you focus better because it puts you into ketosis, and fat is a slow-energy releasing source of fuel as opposed to glucose

There are different types of medium chain triglycerides.

  • Caproic acid (C6) – the fastest to transform into fuel, but has an unpleasant taste.
  • Caprylic acid (C8) – plenty of health benefits: it’s antimicrobial, assists fat loss, and it’s the fastest type of triglyceride to get you into ketosis after C6.
  • Capric acid (C10) – it also transforms quickly into ketones, it’s antiviral, and can help your skin look better.
  • Lauric acid (C12) – good antimicrobial properties, but doesn’t transform into ketones.

The Type of MCT Matters:

  • If you want quick ketosis and a huge energy boost, look for a 100% C8 MCT oil. However, these are the most expensive MCT oils.
  • If you want moderate results in ketosis, energy, and mental clarity at a more affordable price, look for a mix of C8-C10.
  • If you want to improve your mental health and don’t mind a slower kickstart of ketosis, look for MCT oils with lauric acid.

Ingredients and Production Matter:

  • Pure ingredients cost more but make your MCT oil high-quality. Apart from the health benefits of fresh, natural ingredients, your MCT oil will be easy to mix and have a pleasant taste.
  • High-quality production with no harmful chemicals is safer for your body, and it doesn’t damage the environment.

Packaging Matters:

  • Liquid oil: The oil is easy to pour and can get the bottle dirty, or you can add too much to your drink. However, liquid MCT oil is great if you want to add it to salads.
  • Capsule form: The pills are odor-free, tasteless, and don’t get your bottle dirty. However, it takes longer for the capsule to dissolve, and you can’t use them as salad dressings.

The Brand Matters:

  • Get your MCT oil from a reputable brand, such as PK, Onnit, Nutiva, or Zhou Nutrition for extra safety.
  • An unknown brand might save you some money, but you risk quality and safety.


Coconut Oil vs. MCT Oil

Vs Coconut Oil

Here’s a quick comparison between the two:

  • MCT is synthesized, while coconut oil is natural.
  • Coconut oil contains mostly lauric acid, which doesn’t transform into ketones. However, lauric acid is extremely important for brain health.
  • MCT oil works faster than coconut oil when it comes to kickstarting ketosis and offering a bigger energy boost. That’s because coconut oil can contain just up to 65% MCTs, while MCT oil is 100% MCT.
  • Coconut oil is antimicrobial.

MCT isn’t better than coconut oil – they’re just different.

  • Get an MCT oil supplement if you want a big energy boost and a fast start to ketosis.
  • Get a coconut oil supplement if you’re interested in improving your brain health and memory, and triggering ketosis is a secondary issue.

MCT Oil Side Effects

Side Effects

MCT oil is generally safe unless you don’t overdose. There are some minor side effects, such as:

  • Diarrhea
  • Nausea
  • Stomach cramps
  • Vomiting

Make sure you respect the recommended dose and discuss with your doctor if you want to start taking an MCT supplement.

It’s generally advised that you start with half a dose, and work your way up to minimize the risk of side effects.

Best Time of Day to Take MCT Oil. Usage & Dosage

Best Time Of Day

The best time of day to take MCT oil is any time of day, except evenings and nights, when you don’t need the extra energy:

  • In the morning, for a quick energy boost.
  • Before a workout, to get more energy.
  • At the office, to focus better.
  • Before a meal, to control your appetite and meet your keto macros.
  • In the afternoon, to curb your hunger.

You can use MCT oil in your coffee, in smoothies and shakes, to salad dressings, in homemade protein bars, and a ton of other recipes.

The correct dosage varies depending on the product, so check the label for more information. Usually, it’s one tablespoon per day (about 15 mL).

How Much MCT Oil Should I Add in Coffee?

Teaspoon of Powder

Start slowly, with just one teaspoon per day for the first three days.

Upgrade to two teaspoons for the following three days, until you end up with the recommended serving size of one tablespoon/ day.

Best Time to Take MCT Oil When Fasting or Intermittent Fasting

If you’re on an intermittent fast, take MCT oil in the morning, with your coffee or mixed with your food to curb hunger and give you more energy for the rest of the day.

If you’re on a regular fast, you can take MCT oil any time you feel the need for some extra stamina.

Does MCT Oil Help You Lose Weight?

The research is ambiguous. The theory is that MCT oil increases your ketone levels, meaning your body will burn fat for energy instead of carbs, so your fat stores will be diminished.

This entails that you’re burning through your fat tissue, leaving only your muscle mass to make you gorgeous.

But that doesn’t happen:

  • If you eat more calories than you need. A huge caloric intake transforms the extra calories in extra fat stores, which your body doesn’t have time to burn.
  • If you don’t exercise. You can lose weight without exercise, but working out sculpts and tones your muscles to highlight your body composition.

Final Thoughts & Where To Buy MCT Oil?

MCT oils are available everywhere: on Amazon and Better Body Foods online. Costco, CVS, Walmart, Kroger, and Whole Foods retail MCT oils as well.

But Which MCT Oil Will You Get?

All the MCT oils in this review are good. Bulletproof Brain Octane Oil is the best for a huge energy boost, Viva Naturals MCT Oil assists your brain health, while Left Coast Performance MCT Oil is the best value-for-money product.


Perfect Keto MCT Oil Powder is My Top Choice.

It features 100% C8 Caprylic Acid, so it metabolizes quickly and is, therefore, the fastest MCT oil to trigger ketosis.

It’s also the one who provides the biggest, most stable energy boost for hours at a time.

Besides, the Acacia fiber reduces the chances of experiencing any of the side effects that are usually associated with MCT oil.

And the best news of all? I have an exclusive 15% discount! Just click on the button above!

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