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5 Reasons Your Brain Needs Different Fuel After 40
You used to run on coffee and a good night's sleep. Somewhere after 40, the math changed, but the demands on your focus didn't. Here's why your brain is asking for something else.
Ketone-IQ No Caffeine Shot
24 Shots
$83.95
$120
Ketone-IQ No Caffeine Shot
24 Shots
$83.95
$120
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Ketone-IQ No Caffeine Shot
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REASON 1
Your brain runs on two fuels. Ketones are your brain’s superfuel.
Starting in your 40s, your brain may start slowly getting worse at burning sugar (glucose). Its ability to burn ketones stays intact. That slipping afternoon sharpness you've been blaming on age is partly a fuel problem, and fuel problems are fixable.
REASON 2
Coffee doesn't give energy. It only lends.
Coffee is a stimulant. Caffeine blocks the signal telling your brain the tank is low. Ketones are brain fuel.
Ketone-IQ
Sustained, clean energy
No jitters or crash
Fuels brain performance
Supports focus and mental clarity
Coffee
Short energy spike followed by crash
Causes jitters and anxiety
Can disrupt sleep patterns
Can cause digestive discomfort
REASON 3
Ketone-IQ was built for the military. Now adopted by people paid to think.
Ketone-IQ began with $6M in U.S. military funding to fuel the most cognitively demanding jobs on earth. It ended up on the desks of founders, surgeons, engineers, and traders.
REASON 4
The easy gains are gone.
You've optimized the obvious stuff, and it's maxed out. The next gain isn't more of what's already working. You can finally access it in a quick shot. The fuel your focus runs on.
REASON 5
This decade matters the most.
Career, family, fitness, everything compounding at once. More people are counting on your judgment than ever, and this is the worst time to lose your afternoons to a blood sugar dip. A better fuel is the line between coasting through 3pm and actually being there for it.
“A friend recommended Ketone-IQ and while I was skeptical, after trying it I had an energy and focus boost that wasn’t jittery and lasted without a crash. I’ve been using it every day because there is no better feeling than the energy I get from Ketone-IQ."
— Luka Hocevar
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Ketone-IQ No Caffeine Shot Variety
Ketone-IQ is a breakthrough in brain fuel. Ketones support sharper focus, cleaner energy, and mental performance.*
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Why Ketone-IQ?
Elite Energy. Ketone-IQ offers a one-of-a-kind boost in energy, focus, and endurance without jitters and crashes.*
Simple Formula. Sugar-free, caffeine-free, and dairy-free. Just one active ingredient: ketones.*
On-the-go. Ketone-IQ is portable, pocket-sized, and TSA-friendly.
Benefits
Cognitive Performance. Ketones can cross the blood-brain barrier and generate 28% more ATP per gram than glucose. As an ultra-efficient brain fuel, they’re proven to improve focus, cognitive, and mental clarity.*
Physical Performance. Ketones work alongside your carbs by adding a second fuel stream, giving you more total energy to pull from and helping your glycogen last longer during long efforts.*
Metabolic Health and Appetite. Ketones can help suppress ghrelin, the hunger hormone, helping reduce your appetite so you can reach your diet and fitness goals.*
How and when to use?
Directions Based on Goals
Energy & Productivity. Take a shot in the morning to jumpstart clean brain energy. Take a shot mid-day to bridge slumps and stabilize cognitive performance.*
Performance. Take 1–3 shots 30–45 minutes before training, and use additional servings during long endurance sessions like running or cycling.*
Appetite Suppression. Take a shot when hunger hits to stay energized and avoid unnecessary snacking between meals.*
Tips for Best Usage
✅ Use consistently. Many users report better results over time with regular use.
✅ Adjust dosage. Some need 2-3 shots per day for high intensity activities.
✅ Keep it cold. Many users find the taste better when refrigerated, though it's not mandatory.
Common Mistakes to Avoid
🚫 Taking Too Much Too Soon. Ketones are a totally new kind of energy, and some users are unfamiliar with the feeling of being in ketosis. Try starting with a smaller dose and adjusting from there.
🚫 Expecting an Immediate ‘Rush’. Unlike caffeine, ketones provide a steady energy boost, not an instant jolt. Give it time to settle in.
🚫 Ignoring Taste Hacks. If you dislike the taste, mix it with coffee, tea, or flavored drinks for a better experience.
Ingredients & Allergies
Only one active ingredient: ketones, an ultra-efficient source of energy for your brain and body
The natural ketones in Ketone-IQ are made through a sustainable fermentation process. Think: high-tech, non-GMO kombucha
Allergies. Ketone-IQ is free of all major allergens, and is compliant with most diets. However, we do produce on shared equipment, and we are not Certified Kosher
Vegan
Vegetarian
Gluten-Free
Sugar-Free
Keto-Friendly
Paleo-Friendly
Dairy-Free
No-Carb
Non-GMO
Halal-Friendly
Kosher-Friendly
Science & Certifications
Ingredient Safety. All ingredients are designated by the U.S. FDA as GRAS (Generally Regarded As Safe), GRAS Affirmed, or acceptable as food or dietary supplement compounds.
Manufacturing Standards. Production occurs in FDA-Audited, NSF-Audited, and SQF-certified facilities, ensuring high standards of safety and quality.
NSF Certified & WADA Third-Party Tested. Safe for professional athletes.
Developed through a $6MM research contract with the U.S. Military. Engineered for elite performance.
Active Research with Harvard, UPenn & UBC. We actively seek out and fund research to further knowledge about the role of Ketones in metabolic health, wellness, and performance.
Moneyback Guarantee
We want everyone to experience the elite energy you get with Ketone-IQ, but if you find that it's not for you, we offer a 60-day money back guarantee.
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700,000+ Purchases
Your day has a lot of moments that demand energy. Here's how Ketone-IQ fits into every one of them.
World-Class Research.
World-Class Results.
Our research is led by experts with decades of experience in human metabolism and performance.
Try it now with $36 off
World-Class Research.
World-Class Results.
Our research is led by experts with decades of experience in human metabolism and performance.
Try it now with $36 off
Frequently asked questions
What are the different ways people can raise their ketones?
There are 2 ways to raise your ketones:
Endogenous ketosis (your body makes the ketones through a process called ketogenesis), or
Exogenous ketosis (the ketones come from outside your body, e.g. Ketone-IQ or other ketone supplements).
These two methods are not mutually exclusive.
To get into endogenous ketosis, people engage in endurance exercise, follow low-carb/”keto” diets, or fast/starve. These activities cause blood glucose levels to drop and deplete glycogen (sugar) stores. Your body responds to the dip in energy by ramping up ketogenesis, or the breakdown of fat to make ketones to use for energy.
Ketones are an ultra-efficient fuel, especially for our brains. They’re evolutionarily designed to keep us razor-sharp and at peak performance between meals. But extended endogenous ketosis (e.g., keto diet) is hard to maintain long term. Often, it isn’t optimal for athletic or mental performance.
Enter Ketone Supplements (like Ketone-IQ). These are called Exogenous Ketones (”exo” meaning “external”). These supplements quickly deliver ketones to your bloodstream, putting you into ketosis within minutes without the need to fast, restrict calories or carbs, or exercise away your glycogen stores.
How does Ketone-IQ compare to other Ketone Supplements?
There are 4 types of Ketone Supplements. You can read the full comparison here.
Here’s a summary, ranked from least effective to most effective:
D-Betahydroxybutyric Acid (D-BHB)
This is the primary ketone that our body naturally produces and uses for energy.
It's available as a supplement, but it's very acidic and can be hard to handle in large doses. It's best to take it in small amounts.
For a safer way to get BHB or BHB precursors, try the other ketone supplements listed below.
Ketone Salts
These molecules combine D-BHB with a salt such as sodium, magnesium, or calcium.
Due to their high salt content, ketone salts can cause digestive issues when taken in large doses.
The D-BHB is quickly released into your bloodstream, which can cause a small spike followed by a crash.
It's rare to see ketone levels above 0.5mM, and they don't last very long.
Ketone salts are often a blend of D-BHB and L-BHB (an inactive form of the molecule), so you’re only getting half the potential benefits.
Ketone Esters
These molecules chain together BHBs, BHB precursors, and other keto-related molecules like MCTs.
Ketone esters can be one ester chain long (a "monoester"), two ester chains long (a "diester"), and so on.
Ketone esters may not be fully bioavailable if ester chains don't fully break down.
Ketone esters quickly raise ketone levels, causing a spike that can reach 3-5mM in 30 minutes. This spike is followed by a steep crash.
Ketone levels in this range can cause digestive issues, increased blood acidity, and performance problems.
Ketone esters have a bitter, unpleasant taste and can cause nausea, vomiting, and digestive issues. Some people vomit immediately after taking Ketone Monoester, according to its GRAS document.
Ketone esters can be up to three times more expensive per gram of ketone compared to Ketone Diol (discussed next).
Ketone Diol (Ketone-IQ)
Through our $6MM contract with the United States Department of Defense Special Operations Command (US DOD SOCOM), we found that Ketone Diols are ideal for physically and cognitively demanding tasks, unlike HVMN Ketone V1, which was a Ketone Ester.
Ketone-IQ contains a pure 100% Ketone Diol called R-1,3-Butanediol (R-1,3-BDO).
Ketone esters are only 33-50% R-1,3-BDO; the remainder is typically BHB (too spiky) or MCT (too slow).
R-1,3-BDO is the closest precursor to D-BHB, and it's converted directly into D-BHB with near 100% efficiency.
Ketone-IQ has an optimal ketone curve that keeps you between 1.0 - 2.5mmol/L. This ketone range provides unparalleled efficacy, supported on the low end here, the high end here, and holistically here.
Fast Acting: Ketone-IQ quickly raises your blood ketones above 1.0 mmol/L within 30-60 minutes.
No Spike: Unlike ketone esters, there is no harmful initial spike above 2.5mmol/L because there's no unregulated D-BHB.
Natural Slow Release: Ketone-IQ keeps your ketone levels elevated above 1.0mmol/L for a longer period than ketone salts or ketone esters. Your body naturally regulates the R-1,3-BDO → D-BHB process to stabilize energy levels.
Ketone-IQ has a better taste than ketone esters (although it's still not your grandma's lemonade).
Ketone-IQ is 1/3 the cost per gram of any ketone ester on the market.
Read the full comparison here.
What results can I expect with Ketone-IQ?
Raising your blood ketone levels can deliver numerous benefits, supported by a rapidly growing body of research. Optimal results are seen with blood ketone levels between 1.0–2.5 mmol/L, and Ketone-IQ is the most effective and cost-efficient way to keep your ketones within that range.
Below is a brief summary of ketones’ top benefits. For a deep dive of the data, read more here.
Cognitive Performance: Ketones can cross the blood-brain barrier and generate 28% more ATP per gram than glucose. As an ultra-efficient brain fuel, they’re proven to improve focus, cognitive, and mental clarity and protect the brain from trauma, aging, and neurodegenerative diseases.
Physical Performance: When you’re thinking sharper, you can perform better. Ketones can improve athletic performance by enhancing cognition, resulting in better reaction times and reduced fatigue. Plus, ketone supplements can support endurance and recovery for athletes; one study found that drinking ketones during a 3-week overtraining period led to a 15% increase in power output.
Metabolic Health and Appetite: Ketone supplements may improve metabolic health by decreasing blood sugar levels and increasing insulin sensitivity. They may also suppress ghrelin (the hunger hormone), reducing appetite, improving diet adherence, and leading to improved body composition.
For a deep dive of the data, read more here.
Directions — How much do I take, and when?
Take it whenever you want High Performance Energy.
We take it:
every morning to kick off the day,
to get into flow at work,
before, during, and after hitting the gym,
to power through the afternoon slump without resorting to coffee…
you name it!
We recommend taking 1–3 servings daily. Some people like to spread it across the day, and some take double or triple shots at once for an extra boost.
I’m not keto — is Ketone-IQ for me? Yes!
Yes!
Ketones are simply a healthy energy source. Ketone-IQ fits any lifestyle and nutrition plan, keto or not.
Is Ketone-IQ batch-tested and allowed in competitive sports? Yes!
Yes!
All ingredients in Ketone-IQ are WADA compliant, allowed for use in all levels of sport.
For your peace of mind, each lot is 3rd-party batch-tested to confirm 100% compliance.
Please e-mail care@ketone.com with your Lot #, and we’ll be happy to share the testing report for your exact batch!
You can also find more information here.
Will Ketone-IQ break my fast?
If you’re fasting for weight management, focus, energy, and longevity, Ketone-IQ can help boost these benefits.
Ketones have also been shown to reduce ghrelin (1), the hunger hormone, and so a lot of people use Ketone-IQ to help extend their fasts!
Ketone-IQ does contain ketones (ketones are energy, and energy = calories), so if you’re following a strict zero-calorie protocol, it would break your fast.
What if I have more questions?
We love questions! Our Help Center is a great place to start. You can also reach out to us by emailing care@ketone.com or texting LETSGO to 803-49.
We look forward to hearing from you! 😊
*These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease.
© 2026 Health Via Modern Nutrition Inc. All Rights Reserved. Ketone-IQ® and H.V.M.N.® are registered trademarks of Health Via Modern Nutrition Inc.