Questions, answered.

Everything fasters ask about Trace, Core, and how we make them.

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Fasting basics

Do Kētos products break a fast?
No. Trace has zero sugar and no meaningful calories, and nothing that spikes insulin. For a strict clean fast, reach for Naked, the unflavored version. CORE contains no sugar, no added calories, and no protein, fat, or carbs, just active micronutrients and botanical extracts in a vegetarian capsule.
Why do I need specific supplementation while fasting?
Fasting creates a unique metabolic environment that generic multivitamins aren't designed to support.

Converting stored fat into clean fuel relies on specific cofactors. We include high-potency thiamine and chromium to support cellular energy production and help keep your blood sugar steady without food.

Fasting can also draw down catecholamines that help your brain focus, leading to brain fog and fatigue. CORE replenishes those pathways with L-Tyrosine and L-Theanine to keep you calm, motivated, and focused while you fast.

Fasting is a form of stress. Unlike standard vitamins, CORE includes a Metabolic and Cognition Complex featuring clinical doses of Rhodiola and Saffron. These targeted adaptogens help regulate healthy stress response and manage cravings, keeping you supported where willpower alone can fail.

Trace

Will Trace break my fast?
No. Trace has zero sugar and no meaningful calories, and nothing that spikes insulin. It's built to be taken through your fasting window. For a strict clean fast, reach for Naked, the unflavored version.
Isn't a pinch of salt enough?
Salt covers sodium, but fasting also depletes potassium and magnesium: the minerals behind cramps, fatigue, and poor sleep. Trace gives you all three in the ratio your body loses them, buffered so it's easy to sip.
Is that much sodium right for me?
1,000 mg replaces what fasting actively flushes, sipped over hours rather than taken at once. It's a meaningful dose meant for fasting, low-carb, and higher-need days, not casual, unlimited use. If you follow a sodium-restricted diet or manage your blood pressure, talk to your doctor first.
What is betaine, and why is it in here?
Betaine (as BetaPower®) is an osmolyte: a compound your cells use to help hold water. Electrolytes support hydration around your cells; betaine supports it inside.* It's the part a salt-only formula is missing.
Daily Fast or Heavy Need: how much do I use?
One stick a day covers a normal 16:8 or OMAD window. For a longer or extended fast, or a heavy-sweat day on top of fasting, use up to two.
Is it keto and low-carb friendly?
Yes: zero sugar, no maltodextrin, fast-safe. It fits keto, low-carb, and GLP-1 routines as naturally as it fits fasting.

Core

Does Core break a fast?
CORE is designed to be fasting-compatible. It contains no sugar, no added calories, and no protein/fat/carbs, just active micronutrients and botanical extracts in a vegetarian capsule.
Will Core break autophagy?
No. Everything in Core is non-caloric and non-insulinogenic: micronutrients and botanical extracts that don't spike insulin or pull you out of the fasted state. The trace rice hull in the capsule sits far below the threshold that would trigger mTOR. Core supports your fast without interrupting autophagy.
What's in Core?
CORE is built as two complementary stacks designed to optimize the fasted state and help you achieve clean, healthy fasting with ease.

Metabolic Complex: designed to fuel the cellular machinery of fasting, curb cravings and fortify physiological resilience:

Saffron Extract (Satiereal®): an ultra-premium, clinically studied extract that targets the psychological friction of fasting. Satiereal® works on serotonergic pathways to support mood and emotional balance, promoting steadiness-of-mind that keeps stress from steering you back toward food, reducing snacking cravings and making it easier to complete your fast.

Thiamine: an essential cofactor for metabolic flexibility, supporting the enzymes that allow your body to shift gears from burning sugar to burning fat, promoting an energized transition into ketosis and peak mental clarity.

Chromium: hunger pangs are often just blood sugar fluctuations in disguise. Chromium supports insulin sensitivity and healthy glucose metabolism, flattening the peaks and valleys of hunger for a smoother fasting experience.

Cognition Complex: designed to sustain focus and keep you calm under the demands of a fast:

L-Tyrosine: the direct precursor your brain uses to make its focus catecholamines (dopamine and norepinephrine). As a long fast draws those down, tyrosine helps replenish them, supporting sustained focus and cognitive flexibility when demand is high.

L-Theanine: promotes alpha-wave brain activity for elevated focus and clarity. Works synergistically with your morning coffee, smoothing out caffeine jitters to provide clean, sustained alertness throughout your fast.

SHR-5 Rhodiola: fasting is a hormetic stressor: positive stress that signals your body to adapt and grow. Rhodiola is the premier adaptogen that acts as a thermostat for this response, keeping cortisol balanced rather than spiking. We use the clinical SHR-5 extract to support deep resilience.
Does Core contain caffeine?
No. Core is completely caffeine- and stimulant-free. The L-theanine is there to pair with your morning coffee if you drink it, smoothing out the jitters, but Core works just as well on its own and won't leave you wired.
I drink black coffee while fasting. Can I still take CORE?
Yes. In fact, it is a strategic advantage. L-Theanine pairs synergistically with caffeine to create a powerful smart stack. Together they produce clean, directed energy. We are big coffee drinkers too and love coffee while we fast :)
What is the rice hull for?
To produce our capsules, we use the outer hull of organic rice, which is composed of insoluble fiber and natural silica, not the starchy endosperm used for energy. This material is non-glycemic and non-insulinogenic, meaning it is not metabolized as glucose and will not trigger an insulin response or inhibit autophagy. The amount present is negligible, trace quantities far below the threshold required to stimulate an mTOR response or trigger insulin secretion.
When and how should I take CORE?
The baseline protocol is to take two capsules each morning of your fast without food. Because CORE is formulated with water-soluble cofactors, it offers maximum bioavailability even in the absence of dietary fat. It is the perfect first-thing-in-the-morning ritual.

Extended Fasts (24 Hours+ / OMAD): the priority is maintaining homeostasis and cognitive function. We recommend taking 2 capsules in the morning with at least 12oz of water. To sustain performance during longer windows, you may take two additional capsules in the early afternoon (before 3 PM).

The Daily Intermittent Faster (16:8 or 18:6): to extend your overnight fast until lunch, take 2 capsules in the morning with at least 12oz of water. This hydrates you early and introduces the Metabolic Complex to stabilize morning glucose signaling, while the saffron minimizes the 10am hunger wall.
Can I take Core every day, long-term?
Yes, Core is built for daily use as part of your fasting routine, and the doses are designed for ongoing use. Take it on your fasting mornings; on non-fasting days it's fine to take as well.

Quality & testing

What does third-party tested mean?
The lab that verifies our products is independent of Kētos and of our manufacturer. Every batch is tested for heavy metals, purity, and whether the contents match the label. We hold the results on file for every run.
Can I see the certificate of analysis?
Yes. The COA for your batch is available on request. Write to support@ketoshealth.com and we'll send it.
Where are Kētos products made?
In the USA, in a cGMP-registered facility. The sodium in Trace is Redmond Real Salt®, sourced in Utah.
What's deliberately left out?
Sugar, colors, and anything a fast would have to forgive. Naked Trace contains nothing beyond the minerals themselves, and CORE's capsule is vegetarian with a rice-hull base that won't touch insulin or autophagy.

Orders & shipping

What is your return policy?
We offer a 30-day satisfaction guarantee. If you're not completely happy with your purchase, you can return it for a refund or exchange. No hassle 30 day returns on unopened packages. Please visit our Return Policy page for more details.
How fast is shipping?
Free 2-4 day USA shipping with tracking on all orders.

Still have a question?

Our U.S.-based team of fasting experts has your back.

Email support

support@ketoshealth.com · Free 2-4 day US shipping · 30-day returns