Onnit MCT Oil Review 2022- Benefits & Side Effects

Published by Sagar Paudel on


MCT oil is a kind of keto supplement processed from fats known as Medium-Chain Triglycerides (MCTs) derived from food substances like coconut or palm kernel oil, but Onnit specializes in pure MCT Oil from coconut.

The unique thing about these fats is the fact that unlike other fats, they metabolize differently. They are broken down very fast in the body and absorbed. It is a characteristic derived from its compact chemical structure. These fats get metabolized very fast and converted into energy used by the body.

The most common fats found in other foods take longer to digest compared to MCT, hence having them stored in the body as fats, known as Long-Chain Triglycerides (LCTs). Triglyceride is another name for fats or lipids found in the blood. The stored fats either burn to generate energy or, if in excess, stored in the body.

MCTs, unlike other fats they are directly transferred to the liver, where they are used as instant sources of energy or changed into substances called ketones, which are a beneficial alternative energy source to the brain, which only relies on glucose for energy.

MCTs have 6 – 12 carbon atoms that comprise the four fatty acids in all Medium – Chain Triglycerides, Caproic Acid (C6), Caprylic Acid (C8), Capric Acid (C10) and Lauric Acid (C12) while the LCTfatty acids have 13 – 21 carbons. There exist short-chain triglycerides that have less than six (6) carbons.

Use of Onnit MCT Oil as Supplement to the Keto Diet

The principal use of MCT oil is to increase energy generation and the loss of fats in the body. They can be absorbed directly from the digestive system to the liver and metabolized into ketones. A ketogenic diet is a form of dieting where one restrains his/her body from taking carbohydrates and thus inducing it to start producing its energy by burning the fats already stored in the body, a process called ketosis.

How to use Onnit MCT Oil

  • The recommendation is that when taking MCT oil as a supplement in ketogenic diet to take one (1) tablespoon (15ml) in the frequency of 1 to 4 periods a day.
  • You can mix Onnit MCT Oil with keto smoothies where 1 to 2 tablespoons or taken with a licensed keto sweet protein shakes.
  • You can use these oils in keto sauces and salad dressing instead of using the old known oils; however, it should never be used for cooking because its boiling point is low. 
  • You can sprinkle it on top of your keto meal to give it extra fat.
  • Onnit MCT oil is tasteless and odorless; hence can be taken straight with any accompaniment and if in powder form be mixed with drinking water.

When to use Onnit MCT Oil

            Onnit MCT Oil is an excellent supplement for keto diet when used concurrently with a complete dieting ketogenic routine to produce a constant and lasting weight reduction while maintaining mental soberness and increased lean meat mass.

The Pros and Cons of Onnit MCT Oil

  • Improves in cholesterol levels in the body hence can be used as a healthy alternative to other oils.
  • These oils improve on brain health, and it’s a remedy for those who have epilepsy as it reduces seizures
  • They help in weight reduction they boost satiety and keep someone full for a longer time inducing the ketosis process.
  • Improves athletic action as they increase usable energy reservoirs by fat oxidation even without taking carbohydrates.
  • Onnit MCT oil is saturated fat, and as medical organizations advise, one can only take low quantities.
  • MCT Oil is a human-made triglyceride hence cannot be considered natural.

Side effects

Few side effect cases for MCT oils are known. However, like any other oils, these oils should be taken with moderation to achieve the full ketogenic results. Some of the known side effects are issues with vomiting, nausea, stomach upset, and diarrhea if taken in high doses.


These oils have been in existence for a long time, and it is only wise if in ketogenic diet to give them a shot as a supplement to experience the benefits.


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