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Rarely presents Ketone-IQ
Drinkable ketones for deep work and long efforts—available with or without caffeine.*
Eight flavors. Live availability below.
Ketones, plainly
01 / THE FUEL
Ketones are energy molecules your liver naturally makes when carbohydrate availability drops—during fasting, lower-carb eating, and prolonged exercise.
Ketone-IQ uses R-1,3-butanediol, a ketone precursor. Your liver converts it into beta-hydroxybutyrate, or BHB: a circulating ketone the brain and muscles can use for energy. That raises ketone availability without requiring a fast or ketogenic diet.
Read the plain-language scienceR-1,3-butanediol, a ketone precursor
Converts the precursor over time
More circulating ketone fuel becomes available
Cells can use BHB as an energy substrate
Fuel, not a stimulant. Ketones provide energy substrate; caffeine is a separate ingredient in the +Caffeine formula.
Not the same as a keto diet. A supplement can raise blood ketones temporarily without recreating the full metabolic state of fasting.
A second lane. Ketones can be available alongside glucose, giving the body another fuel source rather than replacing every other one.
Why people reach for it
02 / THE JOBS
Focus and endurance ask for the same thing in different clothes: sustained energy when the easy part is over.
For the work
Your brain can use ketones for energy. That makes Ketone-IQ worth testing before a deep work block, a demanding meeting, or the hour when another coffee sounds like a poor life choice.*
For the miles
During prolonged efforts, ketones can offer an additional fuel source alongside carbohydrates. Think of Ketone-IQ as another lane in the plan—not a replacement for carbs, fluids, electrolytes, or training.*
What to expect
Ketones do not create the sharp rush people associate with caffeine. The experience can be subtler and varies by person. Try it in one repeatable situation, then ask a better question:
Did the work feel steadier—or did the second half feel more consistent?
Choose your formula
03 / THE DECISION
The real decision is not flavor. It is whether caffeine belongs in the moment.
Swipe to compare both formulas
NO CAFFEINE
For deep work, later-day training, caffeine-sensitive days, or stacking with coffee you already chose.
+ CAFFEINE
For mornings, pre-training, or high-output days when you want a coffee-sized caffeine dose built in.
The Rarely selection · 01
10g of ketones per shot. Zero sugar. Four flavors for the days when calm focus beats another coffee.
No artificial flavors or colors4 flavors · Swipe →10g ketones · 0mg caffeine
10g ketones · 0mg caffeine
10g ketones · 0mg caffeine
10g ketones · 0mg caffeine
The Rarely selection · 02
5g of ketones meets 100mg of natural caffeine from green tea. Zero sugar, four bright flavors.
NSF Certified for Sport4 flavors · Swipe →5g ketones · 100mg natural caffeine
5g ketones · 100mg natural caffeine
5g ketones · 100mg natural caffeine
5g ketones · 100mg natural caffeine
Make it useful
04 / THE ROUTINE
New supplements are easiest to understand when only one variable changes. Pick a repeatable moment, start conservatively, and pay attention to the part of the experience you actually care about.
FOCUS
ENDURANCE
FORMULA
The honest science
A better product page tells you where the evidence is strong—and where it is still evolving.
Ketone-IQ's precursor is converted by the liver into BHB, raising circulating ketones that the brain and muscles can use as fuel.
Human studies of exogenous ketones have reported cognitive benefits in some specific populations and demanding conditions. Results depend on dose, product type, task, and person.
Ketones alter fuel availability, but trials do not show a guaranteed race-day performance boost. Recovery and adaptation research is active; test the strategy instead of assuming the result.
Built to be checked
Performance nutrition should survive a closer look. Ketone-IQ publishes the work and tests the product.
U.S. Department of Defense R&D program behind the original work.
Certified for Sport and made with WADA-compliant ingredients.
Every lot is independently batch-tested for banned substances.
Made in the USA at cGMP-compliant facilities.
Questions, answered
Everything you need before picking a flavor. No lab coat required.
It is a drinkable ketone precursor supplement made with R-1,3-butanediol. Your liver converts that precursor into BHB, a ketone your brain and muscles can use as fuel.
No. Exogenous ketone products can raise circulating ketones without fasting or following a ketogenic diet. That temporary increase is not identical to the full metabolic state created by fasting or carbohydrate restriction.
No Caffeine is fuel without a stimulant, so do not expect a sharp rush. +Caffeine includes 100mg of natural caffeine from green tea, roughly a coffee-sized dose. Experience varies by person.
No. Treat ketones as an additional fuel source, not a replacement for carbohydrates, hydration, electrolytes, or a practiced fueling plan.
If you are unsure, No Caffeine is the simpler first experiment: 10g of ketones, no stimulant, and no need to coordinate it with your other caffeine. Choose +Caffeine when you specifically want its 100mg dose.
For a focused block, take it before the work begins. For training, Ketone-IQ commonly recommends 30–60 minutes before exercise. Follow the label, consider caffeine timing, and test your own response.
Pack format, live price, and availability are shown from each Rarely product listing above and reconfirmed in your Shopify cart and at checkout.
It contains 100mg of caffeine per shot. Count it toward your daily intake. People who are caffeine-sensitive, pregnant or nursing, under 18, taking medication, or managing a health condition should consult an appropriate health professional before use.
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