Quality Standards
Third party tested.
Made in the USA in a cGMP-registered facility. Every batch is screened for heavy metals and tested for purity and potency.
Supplements built for your fast.
A routine designed for the fasting state, made with clinically studied ingredients like Satiereal® saffron.
A science-driven supplement stack for fasting.
Kētos is the world's first vitamin supplement system designed to supercharge your fast.
NSF Certified for Sport® facility
Third-party tested and trusted
Made in the USA in a cGMP facility
For the 11am hunger wall.
Core is the morning capsule for the fasted state: six active ingredients work together to supercharge your metabolic architecture and help reduce cravings.*
Power-up your fast with cellular hydration.
During a fast, sodium, potassium and magnesium are depleted. Trace replenishes healthy electrolytes to ease fatigue and optimize energy.*
Fasting changes what your body needs.
During a fast, minerals are depleted, hunger spikes, and cognitive fuel must come from a new source. Our science-driven nutrition supplement stack is formulated with clinically studied ingredients to power-up your fast.
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Won't break your fast
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Engineered by fasters
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No sugar, calories or stimulants
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Research-backed ingredients
Supplements for your fasting goals.
Kētos is built to support every hour of your fast. Our formula is for you, if you:
- Want an easier, more comfortable fast
- Hit an afternoon energy or focus dip
- Get headaches, cramps, or fasting fog
- Want reap the benefits of fasting
- Are optimizing for longevity or on a GLP-1 journey
Years of research in every batch
Ultra-Premium Ingredients
Ingredients optimized for impact.
Designed from the ground up with the highest-quality ingredients available, and dosed for efficacy. Core delivers 176 mg of Satiereal® saffron alongside SHR-5 rhodiola and L-theanine, with 100% label transparency.
Bioavailable forms
Nutrients calibrated for absorption.
We use highly bioavailable, water-soluble forms like citrates and chelated forms designed for rapid, near-total absorption on an empty stomach.
The supplement industry was built for the fed state.
We’re building the science and technology for the fasted one.
Bestseller
KT-3™
Trace
Fasting Hydration
The electrolyte load that carries the full arc of the fast.
- Replaces what fasting depletes*
- Supports cellular hydration*
- Eases fatigue and cramps*
- Won't break your fast
Shop Trace
New
DF-3™
Core
Fasting Multivitamin
Six actives that steady the hardest stretch of the fast.
- Supports focus and mental drive*
- Helps curb snacking and cravings*
- Supports a balanced stress response*
- Won't break your fast
Shop Core
Why You Get Hungry at 11am When Fasting: The Hunger Wall
Go deeper into the science of fasting with The Metabolist, our library of field notes and research on the fast.
