Mission
Kētos makes the benefits of fasting research usable in everyday life.
Our mission is to help you reach your health ambitions by enhancing your fast.
We translate advances in metabolic and brain-health research into products that are simple to understand, easy to use, and built to unlock the benefits of fasting: from fat loss and autophagy to longevity and mental clarity.
Guided by current research on metabolism, ketone biology, and cognition, we design around the realities of how you actually fast today.
Why now
The science of energy metabolism is quickly changing how we think about health and performance.
Over the last two decades, research on intermittent fasting, time-restricted eating, and ketogenic metabolism has shown that changing when and how we fuel can influence body weight, insulin sensitivity, blood sugar control, and other markers of metabolic health. In parallel, work on ketone bodies like beta-hydroxybutyrate (BHB) has highlighted their dual role as both an efficient fuel and a signaling molecule that touches inflammation, gene expression, and mitochondrial function.
There is growing interest in how fasting and ketogenic states can:
- 01Assist weight management by drawing on stored fat
- 02Support cognition and steady energy by giving the brain an alternative fuel
- 03Improve insulin sensitivity and reduce reliance on frequent high-sugar intake
- 04Influence pathways tied to repair, learning, and stress resistance
- 05Move metabolic markers being studied in type 2 diabetes and beyond
These advances offer a path to more proactive, physiology-aligned ways of supporting everyday health. Kētos exists to bring that emerging science down to earth, in a form you can fold into your daily fasting routine.
How we started
Kētos began with a frustration shared by serious fasters, builders, and science-focused founders:
“I can find products for bulking, pre-workout, and sugar-heavy energy, but almost nothing built for my actual fasting routine.”
On one side was a growing body of research on fasting and metabolic flexibility. On the other, supplement aisles that still assumed constant snacking and high sugar. The gap was obvious. We were running 16:8, OMAD, extended fasts, and keto cycles, often while working in high-focus professions or training hard, and we found very few products designed to give clean support in a fasted state without undermining the very protocols we cared about.
Founded in 2023 by New York City fasters, metabolic-health enthusiasts, and performance-focused builders, Kētos exists so that when you choose to fast, you don't have to navigate it alone.
We built Kētos to serve you.
So that when you choose to fast, you don't have to navigate it alone. And we are still building. What comes next is shaped by what you tell us.
