The Founder · Bern
The Man Who Reads the Traces.Alessandro Lanzi.
Swiss nutritional therapist. Fasting expert with a private practice since the late 1980s, specifically since 1989. Author. The mastermind behind Zerion and developer of the system that allows you to “hear” metabolic sounds. Not a guru: a craftsman who takes you by the hand.
30 minutes, free of charge and with no obligation, online or in person in Bern.
Alessandro Lanzi · Studio Bern
Alessandro Lanzi
Certified Nutrition Therapist (SPA)
Instructor with a Federal Certificate · Managing Director · Founder of Zerion
Swiss fasting expert since 1989 · Author of *Digiuno Ibrido* · Over 15 years of clinical practice in Bern
“I read the traces left behind by metabolism. Because every life can be lived more fully.”
For over 35 years, he hasn’t just read—he’s conducted research on himself: fasting for weeks on end, following a ketogenic or carnivorous diet, pushing himself to the limit, and each time measuring how his metabolism responds when it shifts gears. There’s hardly a bodily reaction he hasn’t experienced and documented himself.
And he is Instructor with a Federal Certificate of Competence , a trainer for years: He doesn’t just know what the body needs; he motivates people to actually do it. You can’t just study that—you have to live it.
SPA
Certified Nutrition Therapist according to Swiss standards
Federal
Instructor with a Swiss Federal Certificate
1989
Fasting practice since the late 1980s
15+
Years of clinical practice in Bern
Bern
Studio Rabbentalstrasse · Personal Guidance
Book
"Hybrid Fasting," Based on Four Decades of Fasting Experience
Manifesto
What brought me here.
I started listening to my body at an early age.
Before I became a nutritional therapist, I learned how the body responds to stress. For me, fasting was neither a spiritual practice nor a diet; it was the first tool I used to understand what the metabolism really does when you give it silence. Everything that is now known as Zerion grew out of that experience.
In over fifteen years of clinical practice in Bern, I have worked with people who are shuffled from one practice to another, with real symptoms and no answers. They come with what are considered “normal” values and a body that doesn’t agree.
I believe that metabolic flexibility is the key. The body makes noises. You have to listen to them like a detective, read them like a case file, and follow them like a companion.
And I’ll put it another way: Where does a disease begin? Not only when it has a name. For me, it begins much earlier—with the electrons, the free radicals, the first ion that tips over. That’s exactly where I’ve been looking since 1989.
Zerion is my mission: to show a reproducible way for people to remain vibrant until their last breath. Not just to live longer. To live vibrantly. Until the very end.
The Zerion system makes my work transferable, even after I’m gone.
30 minutes, free and with no obligation, one-on-one with Alessandro.
The Story of Its Origins
Selihon's body. 15 organs. 4 seasons. Aeternum.
A unique map of the body’s metabolism, developed after years of listening, measuring, and refining: the inner architecture of every Zerion session.
Why fifteen organs?
Selihon’s body comprises the fifteen that determine the metabolic sound. Each one is a voice in the orchestra.
Liver
Kidney
Thyroid Gland
Adrenal glands
Pancreas
Intestine
Stomach
Gallbladder
Heart
Vessels
Bone
Muscle
Brain
Skin
Lung
Why four seasons, and Aeternum as the fifth?
Metabolism follows cycles: spring brings purification, summer brings vitality, fall brings consolidation, and winter brings depth. Each program takes into account the season in which it is created.
Spring
Summer
Autumn
Winter
Aeternum Lux
Aeternum Lux is not a season, but the state that follows: when vitality no longer fluctuates with the seasons, but becomes a constant. That is where the name of the premium program comes from.
“I read the traces left behind by metabolism.”
The Practice of Fasting
Experienced firsthand. Not just taught.
“Not a guru. Just a craftsman. I’ve spent my whole life exploring myself and picking up on the subtle signs before a disease even had a name.”
Alessandro’s fasting practice dates back to the late 1980s. He has personally practiced water fasting for 52 consecutive days and completed 10 days of dry fasting using Dr. Filonov’s method —a level of practical expertise that is unmatched by any digital longevity program. This experience gave rise to “Digiuno Ibrido”; the signed copy is part of the Aeternum Lux Welcome Kit.
since 1989
Over 35 Years of Fasting
52 Days of Water Fasting
10-Day Dry Fast · Filonov
Author of “Digiuno Ibrido”
ketogenic & carnivore
Federal-Certified Instructor
30 minutes, free of charge. No vending machine. No sales.
Zerion · Three Paths Through the System
Where to start with Alessandro.
Each level builds on the previous one, and a paid level is fully credited when you advance within 60 days. We’ll determine which one is right for you during a free initial consultation.
Kickoff
4 weeks · 8 axes · 65+ parameters
Phase 1: Reading. A one-time reading session with a brief mini-audit.
Crescendo
6 months · 10 axes · 93+ parameters
Phase 2: Getting Started. Six months of support with visible progress.
Aeternum Lux
12 months · 12 axes · 143 parameters
Phase 3: Staying healthy. A whole year, DNA analysis, WhatsApp around the clock.
The point. You don’t book Zerion just to take another blood test. You book Zerion to finally see what your body is really telling you and to know what to do from now on. View the entire system →
Limited spaces · Admission based on an interview
You don’t book Zerion; you apply for it. Alessandro works with each person personally, one-on-one—which is why there are a limited number of spots available each year.
During the initial consultation, we’ll work together to see if Zerion can make a difference for you. If not, you won’t get a spot, and we’ll tell you straight up. A seat goes to the person who needs it, not to the person who clicks first.
The Studio in Bern
A place, not a platform.
The Selihon Studio is located at Rabbentalstrasse 83 in Bern. All consultations take place here; every patient comes in person. Telemedicine consultations are the exception when distances are great, not the standard. Digital efficiency ends where the interpretation of the body begins.
Address
Rabbentalstrasse 83 · 3013 Bern
Medical Center, wheelchair accessible
Medical Center, wheelchair accessible
Hours of Operation
Monday through Friday · 9:00 a.m. – 7:00 p.m.
Contact us
031 336 11 19
alessandro@fastesana.ch
alessandro@fastesana.ch
Frequently Asked Questions
What You Should Know About Alessandro & Zerion.
His fasting practice dates back to the late 1980s, beginning in 1989; in addition, he has over fifteen years of clinical experience in nutritional therapy at Studio Bern.
Certified Nutrition Therapist according to Swiss standards (SPA), instructor with a federal certificate, and author of *Digiuno Ibrido*.
Yes. All consultations take place in person at the studio located at Rabbentalstrasse 83 in Bern. Telemedicine consultations are the exception when there is a great distance involved, not the standard practice.
No. Zerion is a complementary nutritional therapy program. Upon request, it can be supplemented by medical care provided by Alexandra Milutin-Lanzi (a medical specialist); no diagnoses are made, and no promises of a cure are given.
During the free initial consultation: 30 minutes, online or in person in Bern, with no obligation.
Can't find your question here? Ask it during the conversation.
Log in to the Zerion system.
Still not sure which level is right for you? The journey begins with a free initial consultation—one-on-one with Alessandro.
Free and with no obligation · via Zoom, Google Meet, or in person in Bern.
