Europe's platform for metabolic psychiatry

Mental health symptoms despite treatment?

The medically ketogenic diet. Scientifically grounded, easy to implement.

We're not against medication. We're for more options.

In collaboration with

Sound familiar?

I no longer believe my condition will ever return to normal.
I've tried everything: psychotherapy, medication, naturopaths. Nothing helps.
I know the right nutrition can help, but I don't know how to put it into practice.

You are not alone.

For you

When conventional treatment isn't enough.

Treatment-resistant depression Bipolar disorder Schizophrenia PTSD Anxiety disorders Obsessive-compulsive disorders Epilepsy

If you recognize yourself or a loved one here, Kysana was built for you.

Why Kysana

Metabolic psychiatry. From Switzerland.

Evidence-based digital solutions for medically ketogenic therapy.

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Scientifically grounded

First clinical studies and case reports show promising results. Kysana is actively engaged in research.

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Clinically guided

Continuous development in collaboration with nutrition counselors and clinics.

✓

Practical in everyday life

Personalized meal plans, tracking of ketosis, mood and symptoms. Step by step, not theory.

Built in Switzerland

How it works

Your path with Kysana. We take you by the hand.

Nutrition counselor in a consultation
01

Preparation

Inform your treating doctor and find a keto-experienced nutrition counselor. A safe start begins with consultation.

Kysana app on iPhone with recipe and nutrition view
02

Download the app

Download the app. Create meal plans, track food, mood and ketones. Follow your progress.

Everyday life with Kysana: a woman eating her keto meal at home
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Choose your path

Use the app on your own for meal planning and tracking. Or have your nutrition professional send plans directly into the app.

Start your path to better health now.

Stories

People who had almost given up.

Origami figure as a symbol for Dominik: anonymous, mindful, centered

„Just two weeks after starting the ketogenic diet I felt noticeably better. My coach helped me clear up every uncertainty with the implementation. The depression is gone and I get out of bed in the morning without any trouble."

Dominik, got his depression under control through ketogenic nutrition.

Jumping origami figure as a symbol for Jonas: new beginnings, freedom

„Shortly after starting the ketogenic diet with the support of my coach, and in close consultation with my doctor, I was able to reduce my medication dose, and my heartburn also improved significantly. On top of that comes a clear head. I am very grateful."

Barbara improved her wellbeing and can now reduce her medication, thanks to ketogenic nutrition

Origami figure standing confidently, holding a green leaf: a symbol for one's own path

Write your own story.

The first step is easier than you think.

Download the app
Science

Why ketogenic nutrition works for mental illness.

The medically ketogenic diet is a metabolic therapy: the body switches from glucose to ketone bodies, which serve as an alternative energy source for the brain. Growing clinical evidence shows benefits in depression, schizophrenia and bipolar disorder. Kysana makes it practical for everyday life.

Measurable symptom reduction
80%

of study participants reported significant symptom reduction after 16 weeks.

100%

of participants with metabolic syndrome were free of it by the end of the study.

Stanford pilot study · Sethi et al., 2024 · Schizophrenia and bipolar disorder
Dr. med. Luca Hersberger

„What Kysana does has the potential to fundamentally change the treatment of treatment-resistant patients."

Dr. med. Luca Hersberger · Chief Psychiatrist · Klinik Langenthal

Current study with Lucerne University of Applied Sciences and the SGM clinic. First results Q2/2027. More about the science →

The app

What you do with Kysana.

Kysana targets therapeutically relevant metabolic change for more energy in the brain.

Kysana app: personalized keto plan with daily targets

Personalized plans

Calories and macros (carbohydrates, protein, fat) calculated individually. Takes food allergies and preferences into account.

Kysana app: progress tracking with weight and nutrition trends

Tracking that makes sense

Blood sugar, ketones, mood, weight and symptoms. Log single foods or whole recipes. All in one place.

Kysana app: recipe menu with macros and categories

500+ ketogenic recipes

Recipes sorted by calories, carbohydrates and categories. For every meal and every taste.

Kysana app: scanned food item with macro rating

Food traffic light

Scan foods and see at a glance whether they are keto-suitable, conditionally suitable or not suitable.

Kysana app: home with calorie overview and meal plan

Coach in the dashboard

Optionally share your progress with your nutrition counselor. Through their dashboard they send individual meal plans directly into the app.

Your data stays yours. Encrypted, EU-compliant. Only your accompanying professional has access to your data. Add personal coaching →

Your journey

Kysana works best with guidance.

Day 1 to 3

Transition

Glucose reserves (sugar reserves) empty. No ketones yet.

Ketones < 0.2 mmol/L
Day 3 to 7

Keto flu

First ketones. Fatigue, calf cramps, headaches possible.

Ketones 0.2 to 0.5 mmol/L
Week 2 to 4

Fat adaptation

Energy returns. Mental clarity noticeable.

Ketones 0.5 to 1.5 mmol/L
Week 4 to 8

Stable ketosis

Steady energy. Fewer cravings.

Ketones 1.5 to 3.0 mmol/L
Month 3+

Therapeutic effect

Psychiatric symptoms improve measurably.

Ketones stable > 1.5 mmol/L
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Keeping ketone levels on track

Fine-tune carbs and protein early.

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Electrolytes against the keto flu

Targeted relief for calf cramps and exhaustion in phase 2.

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Reassessing medication

Closely monitor psychiatric and blood sugar medication.

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Monitoring blood pressure and blood sugar

Both can drop under ketosis. Detect hypoglycemia early.

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Individual supplementation

The right supplements for vegan diets or special needs.

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Bipolar early detection

Recognize hypomania as a side effect and take action.

Especially with existing conditions or medication: always follow the ketogenic diet with an experienced keto coach and in close consultation with your treating doctor.

Study meeting: Kysana researcher presenting the Group Metabolic Study to clinic partners
For professionals

We work closely with nutrition counselors and clinics.

Kysana is also a tool for professionals: dashboard, monitoring, pilot support. We look forward to pilot partners in epilepsy and mental health.

FAQ

Questions? We're here.

Is this just another app?

The Kysana app was built specifically for brain health. Unlike conventional keto apps, it supports a medically ketogenic diet with recipes in the right ratio of carbohydrates, fat and protein to reach ketosis and therapeutically relevant ketone levels.

You can also log your ketone levels, mood and nutrition, create individual meal plans and follow your progress together with your coach.

We continuously develop the app based on current research and in close exchange with nutrition counselors, clinics and psychotherapists. Our goal: to make a science-based approach understandable and easy to integrate into your everyday life.

Doesn't that sound like a promise of a cure?

The medically ketogenic diet is far more than a diet: it is a metabolic therapy. The body switches its energy production from glucose to ketone bodies, which serve as an alternative energy source for the brain.

In recent years, this form of therapy has increasingly been studied for mental illness as well. Numerous case reports, pilot studies and first randomized controlled trials show promising results, including in depression, schizophrenia and bipolar disorder. The scientific evidence is growing continuously and makes the medically ketogenic diet a promising building block of psychiatry.

What if my doctor is skeptical?

The medically ketogenic diet is still little known to many doctors. At the same time, the scientific evidence is growing, and more and more clinics are engaging with the approach. We provide information material for your doctor to download. If there are questions, your doctor can contact us directly at any time.

Can I manage this in everyday life?

The Kysana app helps you simplify your everyday life and use the ketogenic diet effectively. Studies show that even people with severe mental illness were able to implement this diet in everyday life. The easiest way to start is together with an experienced keto professional at your side.

How long does it take to notice an effect?

This varies from person to person and depends on the condition, metabolism and consistent implementation. Some people notice first changes within a few weeks; for others it takes several months. We recommend following the medically ketogenic diet consistently for at least three months before judging its effect.

Is the medically ketogenic diet right for me?

When implemented correctly, the medically ketogenic diet is safe for most people. At the beginning, temporary symptoms of the so-called keto flu can occur, e.g. fatigue, headaches, dizziness, concentration problems or muscle cramps. A keto coach can help prevent these early on.

Special caution is needed with blood pressure and diabetes medication, as blood pressure and blood sugar often improve quickly and the medication needs to be adjusted. Therefore, always discuss the dietary change with your treating doctor.

Who is the ketogenic therapy not suitable for?

The medically ketogenic diet is not suitable for everyone. It should not be used with certain rare metabolic disorders (e.g. disorders of fatty acid oxidation or carnitine metabolism), acute pancreatitis, severe liver insufficiency or certain forms of porphyria.

Special caution is also needed during pregnancy and breastfeeding, and when taking SGLT2 inhibitors (a specific diabetes medication). With type 1 diabetes or other pre-existing conditions, the therapy should only be carried out under medical and nutritional-therapeutic supervision.

Team & Mission

We're building what we ourselves were missing.

Kysana grows out of personal experience and clinical expertise. We make a scientific approach accessible that so far only existed in a few specialized clinics. So that people no one else could help get a real option.

Astrid Lounici

Astrid Lounici

CEO · Founder · Scientific Lead

Strategy, clinical research and scientific quality.

Simone Hain

Simone Hain

Sales & Marketing · Co-Founder

Operations, community, partnerships.

Arber Bullakaj

Arber Bullakaj

CTO · Co-Founder

Software, engineering, platform architecture, finance.

More about us →

Price

Less than a coffee.

Monthly
€4.99/month
Cancel monthly
Try 7 days for free

Coaching can optionally be booked with our partner coaches.

Download the app

Try Kysana free for 7 days.

Create plans Track values 500+ recipes

Create individual meal plans from keto-friendly recipes on your own and log nutrition, ketone levels and mood. Follow your progress.