MCT oil is hot right now. Everyone wants to know what it is, what it does, and where they can get some. Why? Because it has some legit benefits.

You can think of MCT oil as a concentrated form of coconut oil. The extremely healthy saturated fat in coconut is comprised of Medium Chain Triglycerides (MCT). And MCT oil is a concentrated form of that fat (about 4-6x stronger than eating coconut oil).

The reason I’m so interested in MCT oil is two fold: it’s uniquely metabolized and it’s easily digested. Let’s take a closer look…

MCT Oil is uniquely metabolized.

Instead of being metabolized through the digestion process like other fats are, MCTs are taken straight to the liver where they act very similar to carbohydrates. This provides almost instant–and well sustained–energy.

If you want to feel the effects of this for yourself, put a tablespoon of MCT oil in your coffee — or really go for it all and make bulletproof coffee (or tea). Seriously, this an effect you WILL feel. It kind of feels like you gave your body rocket fuel.

But it’s not just the energy you get that’s interesting. MCTs improve blood sugar regulation (yay!), improve metabolism (especially fat metabolism), may improve thyroid function, improve appetite regulation, and are used to treat many ailments (Diabetes, Alzheimer’s, seizures, cystic fibrosis, etc.).

As far as brain function goes, MCT oil is like rocket fuel because it enhances ketone production. Ketones, of course, are a more efficient fuel for your brain (which is why some people report clearer thinking on a ketogenic diet). For productivity, using MCTs to outwork my competition is my unfair advantage.

That’s a pretty compelling list, which is probably why breast milk contains a lot of MCTs.

Of course, a side effect of all of that is improved body composition. If you’re into burning fat, MCTs are your friend.

MCT Oil is easy to digest and use.

The body is very efficient at metabolizing and digesting MCTs. They don’t require bile salts for digestion and they pass easily from the GI tract to the blood stream without being modified the way long-chain fats must be.

The reason something like bulletproof coffee works so well for energy is that it combines MCTs with longer chain fats. This gives you the rocket boost up front (from the MCTs) with a sustained, diesel-fuel-like energy that lasts for hours on end (from the longer-chain fats).

How to use MCT Oil in daily life…

We’ve put together a free companion “cheat sheet” for this article that will show you:

  • How to best consume MCT oil (did you know you can use it when you cook?).
  • A process for easing into it so you don’t have “disaster pants” (you can’t just dive in, friends!)
  • The five best brands and sources of MCT oil that we recommend (not all of the brands available on the market are legit!).

As I said, the cheat sheet is totally free. Just tell us where to send it…


  • Amanda says:

    Would sauteeing vegetables get over 320? This is my go to option for veggies. I have an electric stove, use a cast iron pan, and have it on medium heat, which is enough to get them sizzling. I don’t even know how I’d check the temperature on this. Thanks!

  • Vicky Rowe says:

    I love MCT Oil. I either take it straight up, or put it in my tea.

  • Wenchypoo says:

    I’d rather do this than work up to the 2-4 tablespoons/day of unmodified potato starch that resistant starch proponents are pushing…

  • Wenchypoo says:

    If your body has trouble digesting long-chain fats, you should definitely be adding MCTs to your diet.

    How does one tell if there’s trouble digesting long-chain fats–would it show up in toilet, or on the NMR?

  • Colleen Mitchell-Knol says:

    How long do you have to take the lower dose for your body to get used to it? I just bought a bottle today and am going to try it! 🙂

    • Kevin Geary says:

      If you handle 1 tablespoon fine, you can try two the next day and three the next. I’ve never used more than 3 tablespoons.

      • Vanessa says:

        I took 1 TBS in my coffee and I’m super dizzy and nauseous. Do you know what caused this to happen?

      • Kevin Geary says:

        You need to take less to start out then. Maybe a tsp.

      • Colleen Mitchell-Knol says:

        Thanks Kevin…..I’m already tolerating 1tbsp, so I’ll try 2 tomorrow! I think, according to my body weight, I’ll only need to take 2 tbsps. 🙂

  • Ebony White says:

    I use the MCT oil by NOW. It doesnt make me feel any different except if i take more than one tablespoon at a time it makes me nauseous with a terrible stomach ache nearly to the point of throwing up, so it is indeed potent powerful stuff. I do feel it is a great thermogenic for me. I like to take it before i go to bed. I wish it did give me a little boost.

  • Robert Pait says:

    Is TwinLabs MCT Fuel the same stuff? Reading the label it mentions nothing of Coconuts…

  • Robert Pait says:

    2nd question, Because of the ketone production I’ve read that diabetics shouldnt use it, however I have also read that its used to treat diabeties… I am a bit confused.

    • Kevin Geary says:

      Where did you read that diabetics shouldn’t use it? Probably someone who is confusing ketosis with ketoacidosis.

      • Cindy Addington says:

        My trainer suggested that I take MCT and after two weeks, I have noticed I am not hungry, have energy and no known stomach issues.

        I also read on WebMD under side effects “Diabetes: MCTs can cause certain chemicals called ketones to build up in the body. This can be a problem for people with diabetes. Avoid using MCTs if you have diabetes” This statement confused me as well, my trainer told me that it would help stabilize my sugar levels and it was good for weight loss since it didn’t store in the fat but goes straight to the liver to be used as energy. (PS I could be off a little, that is what I remembered).

      • Robert Pait says:

        “In addition, regular intake of medium chain triglycerides may lead to the buildup of ketones (compounds produced when the body burns fat for energy). Since the accumulation of ketones can be harmful to people with diabetes, it’s important for diabetes patients to seek medical advice before increasing their intake of medium chain triglycerides.”-Kathy Wong ND

        So I am doing some bicycling, 20 miles a shot and I thought that the mct oil would be better than the banana etc that I would normally eat. I am type 2 diabetic. It seems like if I only eat the mct oil prior to this ride I should be fine. What do you think? (Im a overweight bicyclist doing this for exercise, I go 20 miles in 1.5 hours)

      • Robert says:

        Robert, you are correct, MCTs are not recommended for those with type I diabetes as they battle to process ketones and a build up such as can be caused as a result of MCTs can be dangerous to them.

        Unfortunately most high grade MCTs come from Palm Kernel oil not coconut oil as C8:0 and C10:0, which are the MCTS you want, only make up 13% of these oils and coconut oil would work out far too expensive to use given the low yields.

      • Kevin Geary says:

        I’m not a doctor, but there’s nothing I can find that shows it’s dangerous. In fact, I’ve found multiple research papers that say it’s beneficial for Type II diabetics. For Type I, I haven’t found anything concrete either way.

  • Debbie says:

    I have the really bad dense hereditary cholesterol particles and am pre diabetic, I refuse to take statins so my doctor suggested the paleo diet which I have been on for about 6 weeks, feel better and have lost 13 pounds. Some of my friends eating paleo take mct oil. Do you know if it would benefit my cholesterol or make it worse?

  • Joan mccurdy says:

    I am an a positive was taking cocoanut oil but having problems and today started mct oil so far no problems and yes I am a diabetic type 2 have lost 65 pds in 8months want to continue to do so

  • Dawn Parker says:

    I tried MCT oil in my Bulletproof coffee for the first time today. I added 1 tablespoon. I drank 2 cups of coffee, and found that I wasn’t feeling right. I got to work and I was shaky, and I felt dizzy and disconnected. Could this be because my body isn’t used to it and I should use less?

    • Kevin Geary says:

      Yeah, you should definitely ease into it. Did you drink the same amount of coffee you normally drink as well?

  • Dawn Parker says:

    Yes, Kevin, I did drink the same amount. I do like my coffee very strong. Maybe I will put 1 tsp of the MCT oil in the coffee rather than a full tablespoon. Thanks.

  • Tyrannocaster says:

    I have seen absolutely no effects with NOW MCT oil; bad or good. No runs to the bathroom, but no energy boost at all, no fat-burning weight loss. There may be subtle long term effects that I am not aware of, but it has been a disappointment so far; and it hasn’t worked once when I’ve tried to make mayonnaise with it, unlike olive oil, which always seems to work for me.

    I wonder if this is another ingredient that only makes a difference if you already have enough oil (or whatever) in your system from your diet. But that doesn’t apply to the mayo, and it was one reason I was interested in it, as MCT oil is neutral tasting and I don’t like the way extra virgin olive oil tastes in mayo.

  • Stephanie P says:

    I am on a balanced (clean) diet and have started working out (Lifting) regularly and would like to add MCT oil back into my diet to assist with Energy and fat burning; however, I do have some complex & simple carbs in my diet …will MCT oil still produce the Ketogenic properties with a net carb intake between 50-70g a day? I know that I will not be in ketosis, but will I still briefly produce ketones when taking MCT oil? Or is the weight loss benefit of MCT oil limited to low carb & ketogenic dieters?

    • Aaron says:

      This was my question too. I have been drinking non-bulletproof brand bulletproof coffee (kerrygold, MCT oil from NOW, organic beans from either Trader Joe’s or my local health food store) as my sole breakfast for about two months now. I usually will eat again at noon, but I am typically hungry before that. I am trying to mentally distinguish between feeling physical hunger and just wanting to eat because food looks good. At any rate, in the past few months I’ve only lost a handful of pounds, in conjunction with my beachbody workouts, about the same level of weight-loss I was experiencing before only drinking bulletproof coffee. I am, however, eating almost twice as much fat in my daily intake than I was before, mostly from healthy MCT sources: coconuts, organic meats, organic dairy. Grass fed sources when I can. So if the MCT oil is doing nothing more than allowing me to have a yummy diet while calorie counting (I hate all that low-fat diet marketing) then it’s a plus! So what I’m wondering is this: if I start having breakfast with my morning MCT oil, particularly a protein shake since my workout is in the morning, will I lose those benefits of ketone production?

      Thanks for the great post!

      • Sally Hockema says:

        You have only lost a handful of pounds because you are not eating enough. You should eat 6 small carb/protien meals a day. Skipping meals puts your body into starvation mode.

    • Kevin Geary says:

      MCTs have benefits outside of being in the metabolic state of Ketosis. Unfortunately, the other aspects of the question can’t really be parsed because they’re different for everyone and dependent on many confounding variables.

  • Natalie says:

    Hello: I am taking l glut amine, probiotics and fermented cod liver oil to help fix a “leaky gut”. Does anyone know if this is ok to add to my supplements while healing (any interferences etc…) I would be taking it with tea. I was hoping it would help with energy for my workoutd(boxing 4x week) and losing 10lbs that will NOT budge!:) (I’m 37 5’3″ and 124lbs)

  • Teri says:

    I took 1Tablespoon MCT upgraded oil this morning in my coffee for the first time. I felt so sick I couldn’t move for a couple hours. No bathroom or vomiting issues. Just pain and weak. It’s been 4 hours now and I’m up and moving but still feel weakness and pain. I have not experienced any energy. Any suggestion would be appreciated. The reason for trying mct is I’m looking for increased energy .

  • Jessica says:

    I’ve been drinking bulletproof coffee w upgraded self mct oil (1 tbsp) and 1 tbsp of kerrygold butter every morning at about 4:30am before I workout. I have had the best runs since drinking it! My question is- after my workout (cardio & weightlifting) I feel like I need a protein shake. Will that ruin the effects? Also, what should I stay away from to get the best results from the mct oil, aside from simple carbs, processed foods, and sugars of course….thanks for the great post, too 🙂

  • Bee says:

    Is it safe to take MCT Oil if you have a heart condition? Will MCT Oil help heart

    Pls advise, as I am considering taking, because since taking heart Meds my weight is increasing. looking for something safe.

    Thank you,

  • Judy says:

    I want to take mct oil to fix sleep issues. Any suggestions about how much and when?

  • shubham toshniwal says:

    Dear sir,
    How to avoid ketone by taking coconut oil? I have been suffering from diabetic type 1 since weight is only 37 kg.i want to gain weight without ketone by taking coconut oil, now I have been insuline resistence that is 1000 units a day from 2012.i am still struggling… can I take coconut oil with other foods so that avoid ketone?.anyone has experiance this? Plz replay me as soon as

  • TJ says:


    Since MCT oil is processed, is there a brand that stands out above others? I’m a fan of Onnit products and I know they provide MCT oil so I was looking to try it.

  • Lynn says:

    I listen to Dr Drew and he is a big fan of MCT oil. I bought some and I am trying it…I have noticed NO difference…except I have a hard time choking it down…plus it’s 100 calories…worth it? How long do I continue before I feel/see results? What I am looking for is the feeling of not craving food and feeling satisfied with the eating clean diet I am trying to follow…

  • Cindy says:

    Would I take the MCT oil in place of my other healthy fats for the day such as almond butter or coconut oil or avocado?
    Thank you!

  • Ian says:

    Kevin, what brand of MCT Oil do you use?

    (I’m just starting out on Now MCT Oil, and find that I can tablespoon this straight in unlike coconut oil which tastes very rich and fatty going down and makes me wince.)

  • brooke says:

    is it good to take mct oil with protien? like chicken and only 5g of fat from mct oil?

  • Canf says:

    My question is, how far apart would your recommend taking mci daily and is time of day something to consider especially for weight loss goals?

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