T3 Fuel – Superhuman.io

The Complete Formula For A Full Metabolic Overhaul

Providing A Constant Supply Of The Highest Octane Fuel, For Dramatic Increases In Metabolism & Energy

This Affects Every Cell In Your Body

Did you know 52 million Americans have a thyroid deficiency and don't know it?

Underperforming thyroid is linked to heart disease, stroke, cancer, diabetes — 59 diseases in all.

Do you experience any of the following symptoms?

  • check
    Do you find you don’t have the same energy you once had?
  • Have you felt the effects of depression, weakness, or fatigue?
  • In the morning, is your face puffy or eyelids swollen?
  • Do you have trouble getting up in the morning?
  • Does the scale not seem to move even though you’re doing everything right?!

The thyroid gland produces an important hormone called triiodothyronine (T3).

You should understand the power of T3 because it is the single most important regulator of metabolism in the human body.

T3 allows cells to burn more energy, and in effect, can prevent an increase in body fat and can also help us lose fat faster.

But there are many potential problems someone can have with their T3 production and their metabolism.

And when the metabolism isn’t optimized. Everything we try to do with our fitness becomes harder.

You’ll experience:

  • check
  • Cold extremities
  • Poor memory and concentration
  • Unexpected weight gain
  • Depression
  • And weakness

The problem is that most doctors and drugs are focused purely on the thyroid gland. What we really need to be doing is looking further down stream to see how to optimize the metabolism at the cellular level.

And it all starts with these remarkable powerhouses, the mitochondria.

The mitochondria act as the energy factory of a cell…producing Adenosine triphosphate (ATP).

Optimal Mitochondria Function is EVERYTHING

There is a delicate dance that is performed by the thyroid hormone and the mitochondria of our cells. When our mitochondria are compromised, all of our health goes down hill.

This leads to a reduction in the production of ATP and is a key characteristic of aging and all chronic diseases. (i.e. Alzheimer’s disease and Parkinson’s disease)

Unfortunately, standard diets starve the thyroid gland from critical building blocks needed to create these essential thyroid hormones and which also lead to damaged or inactive mitochondria.

In a moment, I’m going to introduce you to an exclusive formula of eight scientifically-validated and vital ingredients combined at clinically effective doses that ensures your thyroid gland is always operating at maximum efficiency.

This formula is designed to:

  • check
    Support The Metabolism At The Cellular Level
  • Allow You To Break Fat Loss Plateaus
  • Support & Fuel Healthy Mitochondria & Thyroid Hormone Levels

In the following paragraphs, you’ll learn how taking two small capsules per day can give you the ultimate “Metabolic Insurance” no matter how hard you’re dieting & training.

T3 Fuel: The Ultimate Supplement
For Metabolic Health

T3 Fuel combines some of the most vital and fundamental ingredients to have your thyroid gland and mitochondria operating at optimal efficiency.

Here’s what’s inside T3 Fuel:

First, we ensure you have the raw materials necessary to construct the powerful T3 hormone (iodine and tyrosine).

Next, in order to ensure conversion of the inactive T4 into the more potent T3 hormone we’ve added selenium.

Because we want to protect from not only from an under performing Thyroid, but also an over performing Thyroid, we’ve also added the commonly deficient minerals, zinc & magnesium.

Once we had covered our bases, it’s time to increase the metabolism. This is done with Citrullus Vulgaris Peel Extract, which has been show to significantly elevate T4 & T3 levels.

Hyperthyroidism is one of the main causes of muscle weakness, decreased mental health, and poor endurance. L-carnitine is added to prevent the Thyroid from over producing to a point of negative side effects.

Finally, Resveratrol is used in a robust dose to cause the activation of SIRT1. SIRT1 promotes secretion of thyroid stimulating hormone (TSH) and has been shown in research to regulate thyroid hormone secretion.

But what’s most remarkable, is it gives all the health benefits of calorie restriction… without restricting calories.

T3 Fuel Truly Is The All-In-One
Solution For Optimal Metabolic Health!

The end result is a COMPLETE and extremely potent formula that has been carefully DESIGNED to take the most effective ingredients and wrap them into a single supplement that will literally change the way your body runs!

You will not find another high quality supplement as complete and effective as T3 Fuel anywhere else.

We know!

We looked ourselves and couldn’t find one. That’s why we worked so hard to design our own and get it perfectly right!

  • check
    The right ingredients.
  • The right amounts.
  • Based on the right research.

All Rolled Into One Easy-To-Take Single Supplement

Just two simple capsules taken daily, and the potentiated punch of the world's most complete metabolic supporting formula go right to work for you!

And you already know that we hold the highest standard of quality in all our formulations, so it should not come as a surprise that we stand behind T3 Fuel 100%.

So let me ask you this…

If you’re already committed getting the best results in the gym, don’t you want to ensure your metabolism is running at it’s peak and never starved from the raw materials & fuel necessary?

Give it the fuel it craves TODAY!

Try T3 Fuel risk free and you’ll be amazed by your renewed energy and how you begin to look in the mirror!

T3 Fuel is only available in minute quantities; supplies are very limited and only a fraction of our current customers will be able to access any stock at all.

So, please don’t let this opportunity pass you by. Select your supply of T3 Fuel today and make sure you don't miss out on the Most Powerful Metabolic Support Formula Ever Created.

Out of Stock

Regardless of if you suspect you have a sluggish metabolism or not you need to be taking T3 Fuel, and here's why: T3 Fuel is designed to help the Thyroid achieve optimal balance (not over-active or under-active).

T3 Fuel is the first supplement designed to work at the cellular level and address all the upstream processes required to supercharge the metabolism.

Plus, the anti-aging effects from the enhanced mitochondrial function are profound.

So if you want to look good, feel good, and train like a beast as you get older, you NEED to be taking T3 Fuel.

Simply put, supplementing with T3 Fuel is even more important to your health than taking a daily multi-vitamin.

By supporting and repairing the thyroid you end up revving EVERYTHING!

This is the key to repairing the body at the cellular level.

Once this is done the results are profound.

  • check
    Improved sleep
  • Easier fat loss while dieting
  • Glowing and healthy skin
  • Less facial and body bloat
  • Enhanced recovery from training
  • Resilient immune system
  • Improved memory and concentration

Out of Stock

Just a quick reminder, T3 Fuel is produced in small batches . This means once we run out of stock, it will be at least two months before you can get access again.

Once you start taking T3 Fuel, you aren't going to want to go a day without it.

If when you click the button below it says "SOLD OUT" I'm sorry in advance, but I'm afraid you missed out.

60 Day Money Back Guarantee

Now I know you've worked hard for every penny and deserve to have your purchase fully protected. No matter which package you select on the next page, you're totally protected by our no questions asked 60 day money back guarantee.

If for any reason at all you decide to return the product, just do so within 60 days of your purchase date. We'll issue you a quick no questions asked refund.

Again, you have nothing to lose, and everything to gain.

Frequently Asked Questions

What is auto replenishment and how do I cancel?

How many capsules?

What’s inside T3 Fuel?

When will I start seeing results?

The Results Are In


I have Hashimoto's thyroid disease. So far with the T3 I have not had any issues with the supplement causing problems with my thyroid.

I have felt more energy than with the synthetic hormone that I have been taking for years. I feel like my thinking is more clear and that I don't have the nervous tension it get from the pharmaceutical hormones.

My weight has stayed the same, but that was not the reason I started T3. I started In Hopes that I can reverse the damage from all the years of taking pharmaceuticals that my thyroid is all jacked up. My blood results show that my thyroid is working a lot better and I am taking less of my synthetic hormones with the hope that one day my thyroid will function well enough not to take thyroid medication ever again. Fingers crossed on that hope.

So far I am a big fan of T3. Will continue ordering it...


I've been taking T3 Fuel almost 2 months so far and I've noticed that my body temperature is normally higher.

I notice it gives me a little boost of energy in the morning which I can tell. I have to say since the new year, I've dropped 14 pounds doing Carbnite and I've been doing Carbnite for awhile and never lost that much weight in a month. The only thing that really changed was taking T3 and I just recently started taking Gut Shield. But, I have to say that it's working!

I'll keep taking it for sure!


I tried T3 Fuel a couple years ago and couldn't believe how much better I felt. One of the main things I noticed was the energy I had after taking T3 Fuel, but the most amazing thing was my hair stopped falling out. My hair had been thinning for a few months, but taking T3 Fuel seemed to slow and help stop my hair from falling out. I'm so grateful Kiefer has studied and taking the time to make such a reliable product.

Also, I have a nodule on my thyroid gland that has shrunk significantly, at my last Doctor visit they couldn't feel the nodule anymore. Obviously filling in some serious nutritional gaps has made a huge difference in my thyroid health. Thank you for making T3 Fuel. It's an amazing product.


I have been taking T3 for close to 6 months consistently now and the biggest difference that I have been able to notice is with cognitive function. I am currently a student at the University of Washington majoring in Finance and Information Systems. Since I have been taking T3 not only have my grades improved but I have also reduced the time I spend doing homework and studying. About a month after starting my T3 supplementation I noticed a greater ability to focus during class which allowed for a lot more of the information presented to be absorbed. I truly believe that taking T3 has given me back hours of time I use to spend studying but now can spend in the gym training. T3 has become a supplement that is as important to for me to take daily as vitamin D (I live in Seattle) and fish oil.

Side note: T3 has also allowed me to get deeper into states of meditation by increasing my ability to focus for longer periods of time. Did not expect that to happen when I started supplementing.


I have been taking T3 Fuel for about a year now in the AM about 1-2 hours after I get up each morning and an hour before I eat breakfast. I currently have autoimmune thyroid issues and I notice that I feel better on it and as an added bonus my hair and nails are thicker and longer since starting on them. I know that it is important to get iodine for your thyroid but selenium should be consumed with the it. This formula has what I need gives me peace of mind that I am bridging any dietary gaps and giving my body what it needs.


I have been taking T3 Fuel for approximately 5 months, and I have nothing but great things to say about the supplement. I have taken many supplements in the past, but T3 fuel has given me not only excellent physical results, but I feel sharper mentally, and it has enhanced my mood, it is like a happy pill.

This is also one of the positive side affects I heard about, but my hairdresser has mentioned how much faster my hair has been growing. The ingredients in T3 Fuel are top notch, and I will absolutely be re-ordering the next time it becomes available.


The T3 has helped me tremendously from more energy, sleep, training results to overall health. It is well formulated and thank you Kiefer for all the great information and products!!


I have been taking T3 Fuel for several months now along with Carb Nite and Carb Backloading. I have been impressed with the noticeable effects of taking T3 fuel. My energy levels are all around demeanor has improved. I used to feel somewhat sluggish throughout the day, but that has now completely subsided thanks to T3 Fuel. I intend to take T3 Fuel for the foreseeable future.


As a recovering ultra runner I was starting to pack on a few extra pounds after I stopped putting in 60 to 80 miles each week. After adding T3 Fuel with no other changes I was able to drop 20+ pounds in a couple months. In fact, I now weigh less than when I was running all those miles, plus I feel way better. This product is definitely worth a shot if you are struggling with a few unwanted pounds.


I've been taking T3 Fuel for about two years now. The results for me are exceptional My energy levels are increased throughout the day. I have dramatically increased focus and calmness. I definitely feel it working!

I stack T3 with Gut Shield in the morning and the synergistic effect is perfect! I know my mitochondrial and gut health is taken cared of. I will take these as long as Kiefer makes them! To better health and long life!


My experience with taking T3 Fuel has been great! My overall energy levels increased and have stayed that way since the release date of T3 Fuel. It always helps to have more energy when having two young kids and also the help me defend against sickness that kids like to share with others. I also really liked what it did at the beginning to help with my body composition and getting past the plateau. Now T3 Fuel just part of my daily routine and maintenance. Thank you for a great Superhuman supplement!


T3 Fuel has been great as I've found to be the case with all of your products! You really put the time and research into making sure you provide a quality product that is going to help in optimizing everyday life for whoever may take this supplement.

You provide background info on what it is and why it works for some this is great as they like to know the backstory and science of why something works although with the time and effort you put it isn't always necessary. Since taking T3 I've noticed consistent energy levels and have been able to maintain a leanness that I'm happy with.

I know that in taking this everyday it contributes to my overall health and can't imagine not taking it. For anyone who is skeptical give it a try and if you don't like it they offer a money back guarantee although I don't think that will be the case if you give it a try.


I've been taking T3 Fuel for well over a year now now and the changes I have noticed are impressive to say the least. My hair grows so fast I’m getting haircuts every 2 weeks. My nails need cutting every week as the grow very fast also.I’ve been able to stay leaner than before with very little training (sometimes none at all) for extended periods of time and have been able to train at a higher intensity with more energy and focus than a with a normal pre workout supplement. My sleep patterns have also improved with me now falling asleep faster and staying asleep longer. This product has improved my life so much and is something I will continue to take every day. Thank you and keep up the great work you and your team do.


What I noticed when taking T3 was the fact that my sleep and recovery improved drastically in such a short period of time. The way I knew this was the T3 functioning was because I did not change anything whatsoever in my diet and lifting regimen , and to further test I stopped T3 and noticed the difference in how I felt. Thank you very much for the awesome products and I will continue to support Superhuman! I just started Gut Shield and I am excited to put this to the test.


Where to start with T3 Fuel, at first I was unsure on whether it would do anything as I have been 100% with carb nite for years and while taking carnatine, tyrosine and zma etc I thought I wouldn't need it, needless to say I took the plunge and bought 3 bottles.

Well within the first dose of taking I noticed a huge jump in constant energy levels all day this improved over a few weeks of feeling better and happier whilst not fatiguing nowhere near as quick as I have before and overall performance has increased, I must say this is one thing I will never stop taking. I thank you very much for what you have developed and the extra benefits you have given me.


When I started taking it I had lost around 40lbs on carb nite but had plateaued around 200 lbs. After taking it I lost another 20lbs and have been sitting around 180 for the last year.

I was only working out twice a week and I haven't really worked out the last 6 months due to a couple shoulder and knee injuries. Despite no exercise other than walking 5 miles a day at work, I've maintained most of my muscle, leanness, and general shape. I'm skinnier now than I was in high school maintaining a size 32 with very little effort. Just proper diet, T3 Fuel, and more recently Gut Shield.


In short, T3 fuel is a great product. As with all the Superhuman products, it's somewhat subtle in taking effect, but with prolonged use, it has rather resounding effects. After a long athletic career, I am plagued with joint pain and as I got older, I began to suffer from a general sluggishness in the mornings. After about 3 months of use, my aches and pains started to show some improvement as did my sharpness upon waking....Superhuman has yet to release a product that I didn't love, and I would recommend T3 fuel to anyone that's looking to improve their health. It goes without saying that I'm a customer for life.


I have been taking T3 Fuel for 3 months, approximately…. I can feel it if I miss a day, in that I get sluggish (so to speak) T3 Fuel keeps me on an even keel!

I would highly recommend T3 Fuel to those that have life's stressors set to MAX!


I've been taking T3 Fuel for about a month and half now. I noticed immediate change within about a week of taking t3. My overall sleep was better, along with my overall energy throughout the day. I felt less fatigued overall and my workouts in the gym seem to improve. My mental sharpness and mood improved as well. I felt more aware and lively. Overall, I'm happy with my results of taking T3 Fuel so far. I was a little skeptical at first but I am now a believer!!! Keep up the great products.


I have a busy work schedule with a lot of travel and early starts, and that often leaves me tired and unmotivated to train.

I've been taking T3 for a couple of months now, and have recorded a weight reduction of around 5kg in overall weight, but also almost two sizes in clothes. My energy levels are up, I'm working much harder in training and able to sustain high effort much longer, particularly in my rock climbing.

All in all I'm very pleased with progress so far and plan to continue using T3 as a key part of my supplement regime


I am "all in" on Kiefer. Kiefer is decades ahead of the curve. I take T3 Fuel, Carb Shock, and now Gut Shield.

I have taken T3 Fuel for several years. I consider it to be one of my essential supplements. I have a family history of thyroid issues, so I have been reading about thyroid health for years, hoping to avoid any issues myself.

Kiefer made that easy. I found T3 Fuel, tried it, and have been taking it ever since. My energy level became very steady while taking T3 Fuel. No more energy level ""lows."" I took one brief hiatus about a year ago, when I wondered if it was doing anything and stopped taking it. No more steady energy level. The difference was startling. So, I started taking T3 Fuel again, and once again, my energy level leveled out.

Out of Stock

Copyright © Superhuman, LLC 2019. All Rights Reserved.
"Superhuman" is a registered trademark of Superhuman, LLC.