The Best MCT Oil for Ketosis (Review & Buyers Guide)

Two real coconuts cut open with coconut oil around them
What Are the Best MCT Oils for Ketosis?

I was interested to find out what are some of the best MCT oils to use.

So I went out researching for what are the highest rated & most recommended MCT oils you can buy online to help you raise your ketone levels on a ketogenic diet.

Here is a list of recommended medium chain triglyceride oils to use on a keto diet for you to compare:

Top Rated MCT Oils for Ketosis

1. Onnit MCT Oil

The Onnit MCT oil product range is a great option when looking to go keto. Onnit make regular MCT Oil, Emulsified MCT Oil and even different Savory MCT Oils to put in soups and on salads.

Onnit is a fitness-focused company that was created in 2010 and has since become a multimillion dollar establishment. Their premier product, Alpha BRAIN, is a supplement that supports memory and focus. Aside from MCT oil, they sell a variety of performance, sleep and nutrition supplements as well as snacks, protein powder, coffee and tea. Their mission is to help people achieve what they call “Total Human Optimization”. You can find Onnit coupon codes here that could also help you get the best price.

Specs
  • Serving size: 1 tablespoon
  • Calories per serving: 125 kcal
  • Bottle sizes available: 24-ounce
  • Total MCT content: 13.7 grams
  • MCT composition: caprylic acid, capric acid and lauric acid

Let’s compare some of the other features:

  • Contains lauric acid, which is thought to be particularly good for gut health due to its antibacterial properties
  • Is dairy-free, gluten-free and vegan
  • Does not contain palm oil
  • Calorie content is relatively low
  • Only one bottle size available
  • Some reviews mentioned the digestive trouble side-effect from MCT oil
  • No pure C8 MCT oil Option

2. Bulletproof Brain Octane Oil

The Bulletproof Brain Octane Oil is a pure C8 MCT oil to get help raise your ketones high and fast.

Most might just think of Bulletproof coffee when thinking of the brand. However, they sell numerous coffee, tea & food products. The company even has several coffee shops located on the US west coast. In addition to coffee, they sell protein (likeĀ collagen & collagelatin) and other supplements (like unfair advantage), including MCT oil they call XCT oil. Their product line is even more wide-ranged, including vibration plates, biohacking supplements, books, accessories and clothing. You can find Bulletproof coupon codes here that could also help you get the best price.

Specs
  • Serving Size: 1 tablespoon
  • Calories per serving: 130 kcal
  • Bottle sizes available: 3-ounce, 16-ounce, 32-ounce
  • Total MCT content: 14 grams
  • MCT composition: caprylic acid

Let’s compare some of the other features:

  • There are a variety of bottle sizes available
  • The 3-ounce bottle can be purchased and tried before consumers commit to a larger size
  • The MCT content is higher than average
  • Made from 100% coconut oil and no palm kernel oil

3. Sports Research MCT Oil

The Sports Research MCT Oil on Amazon say they provide third party testing so you can view the certificate of analysis to do your due diligence. This is great for people who like to know their supplements, this food supplement, is being tested.

Sports Research makes supplements and oils for performance enhancement and general health. They also offer the Sweet Sweat line of workout enhancers and waist trimmers. Sports Research has a commitment to quality, and all of their products are GMP-certified. They also offer a database of recipes in which their products can be used. (ref)

Specs
  • Serving Size: 1 tablespoon
  • Calories per serving: 125 kcal
  • Bottle sizes available: 16-ounce, 32-ounce
  • Total MCT content: 13.7 grams
  • MCT composition: caprylic acid, capric acid and lauric acid

Let’s compare some of the other features:

  • Contains lauric acid, which is thought to be particularly good for gut health due to its antibacterial properties
  • There are two bottle sizes available
  • This product is vegan, non-GMO, keto-certified, GMP-certified and paleo-certified
  • Calorie content is relatively low
  • Does not contain palm oil
  • They have a huge database of recipes in which MCT oil can be used
  • According to some reviews, the bottle can leaky
  • Some customers have reported headaches and diarrhea

4. Left Coast Performance MCT Oil

The Left Coast Performance MCT Oil on Amazon says that they only use organic coconut oil and no palm kernel oil.

Left Coast Performance is a small company that markets MCT, keto and bone broth supplements. Their MCT oil is comprised of caprylic acid and capric acid. Their website contains a useful FAQ section on each product, but does not contain much else. (ref)

Specs
  • Serving Size: 1 tablespoon
  • Calories per serving: 126 kcal
  • Bottle sizes available: 32-ounce
  • Total MCT content: 14 grams
  • MCT composition: caprylic acid and capric acid

Let’s compare some of the other features:

  • This product is vegan and non-GMO
  • MCT content is higher than average
  • Calorie content is relatively low
  • Made in USA
  • Only one bottle size available which is the large 32-ounce
  • Some reviewers claim to have experienced a rancid taste and smell which may be from the low quality of the plastic bottle
  • Their website doesn’t contain a lot of detail about them

5. Viva Naturals MCT Oil

Viva Naturals has been around since 2011 offering organic foods, supplements, essential oils and beauty products. They have a commitment to quality and use their signature Viva Quality Checklist to ensure that quality. They are so confident in their products that they have a one-year money-back guarantee on every item. (ref)

Specs
  • Serving Size: 1 tablespoon
  • Calories per serving: 140 kcal
  • Bottle sizes available: 32-ounce
  • Total MCT content: unavailable
  • MCT composition: unavailable

Let’s compare some of the other features:

  • This product is third-party certified
  • It is paleo-friendly, gluten-free and vegan
  • The company is transparent and has a quality control process that is detailed on their website
  • They offer a money-back guarantee on all of their products
  • The MCT amount and makeup are unavailable, so consumers have no way of knowing exactly what the product contains unless they call the company directly
  • The calorie content is higher than average
  • Only one bottle size available which is the large 32-ounce

Buyers Guide Information

I know you were looking for what are the best options, but here is some more detail as to why we would want to consider using medium chain triglyceride oils on a low carb or ketogenic diet.

What is MCT Oil?

MCT Oil stands for Medium Chain Triglycerides oil. MCT’s are a type of healthy saturated fat not found in most foods. They are also sometimes called Medium Chain Fatty Acids (MCFA). It is often used by people who are on keto diets for weight loss or wanting to be in nutritional ketosis, but it can have benefits for those eating a normal diet as well. (ref)

How Does MCT Oil Help Ketosis?

Medium chain triglycerides are designed to bypass the bloodstream and go straight to the liver where they are directly metabolized into ketones.

These ketones are one of the brain’s primary energy sources other than glucose.

Types of Medium Chain Fatty Acids

Different types of MCFA’s are metabolized differently. The following is a list of the different types of MCFA’s your MCT oil might contain. (ref)

Most MCT oils are comprised of C8 and C10, but some also include C12. Lauric acid has been shown to have stronger antimicrobial properties than the other acids, but not all MCT oils include lauric acid.

Amount of Medium Chain Triglycerides in Food

Coconut oil is a good, healthy source of MCT’s, but MCT’s can also be found in palm oil and dairy products.

Here is a breakdown of the MCT composition found in each common type of food. (ref)

Coconut oil is thought to be the highest quality form of MCTs, since it contains a high ratio of MCTs and has a host of other health benefits. MCT oil is the purest form of MCTs since it is comprised 100% of MCTs.

MCTs have also been shown to help with weight loss when used in cooking oil or as a dietary supplement. (ref)

MCT oil can be enjoyed many different ways. One popular way is stirred into coffee, but it can also be baked into desserts, mixed into salad dressings, used as a cooking oil, and added to smoothies or shakes. Of course, it can also be taken by itself. Since it is tasteless and odorless, it can go well in almost any food.

When to Use MCT Oil to Help Improve Ketone Levels?

Since ketones are a primary source of fuel for both your brain and body, there are numerous use cases for wanting more beta-hydroxybutyrate (BHB) in your blood.

Higher ketones might help people with the following health conditions.

Benefits of MCT Oil Supplements

MCT oil supplements can have other benefits aside from being used to help to treat or manage health conditions.

Healthy individuals may see the following benefits when using MCT oils:

How to Take MCT Oils?

Here are some popular ways people like to use MCT Oil:

If you are travelling you may find using an MCT oil powder more convenient to take on the road.

How Much MCT Oil Should You Consume?

According to University of Virginia research the maximum tolerated daily dosage of MCT oil can be up to 4-7 tablespoons (60-100ml). (ref)

Most people first starting to take MCT oil will want to take 1 tablespoon (15ml) per day for 3-4 days to assess for any gastrointestinal comfort then take between 1-4 tablespoons per day thereafter. This is different for MCT Oil powders.

Common Side-Effects

Even if you are healthy, you may experience some side-effects when taking MCT oil.

One of the most common side effects is gastrointestinal discomfort, which can include the following symptoms.

To offset these potential side effects, start with a small dose of MCT oil and work up slowly to a larger dose. Also try taking the oil with food.

Is It Safe to Take MCT Oil?

MCTs are considered generally safe for most healthy people.

An exception is those with high cholesterol, specifically high triglyceride levels, since MCT oil might increase triglyceride levels.

When Not to Use MCT Oil

MCT Oil vs Coconut Oil

MCT oil is considered superior to coconut oil for ketogenic diet supplementation due to its higher concentration of caprylic acid and capric acid. While coconut oil by itself only contains about 15% MCFAs, MCT oil is comprised of up to 100% MCFAs.

Here is a side-by-side comparison of the two.

Coconut OilMCT Oil
2 grams of MCTsUp to 15 grams MCTs
Has antimicrobial propertiesMay or may not have antimicrobial properties
Has other health benefits asides from MCTsHas no other health benefits
Costs 45 to 60 cents per gram of MCTsCosts 2 to 3 cents per gram of MCTs

On the flipside, coconut oil has other properties that can have a wider range of health benefits. Which product you choose depends on what results you are looking for.

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