No plan is a template. Every protocol is built from your routine, your metabolism and your goal. High adherence is what happens when the plan fits real life.
High performance nutrition · Rio de Janeiro and online in 15 countries
The last
nutritionist you
will ever need
Sixteen years, sixteen thousand clients, fifteen countries. The discipline of twelve years as a professional athlete applied to the science of nutrition.
You are not getting a diet. You are getting a champion's strategy.
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Scroll to see the method
The origin
From the court
to the clinic
Before changing bodies in the clinic, Marcelo Langsdorff spent twelve years as a professional basketball player, including the Brazilian national team and clubs like Tijuca, Minas, Botafogo, Vasco and Fluminense.
That is where he learned what no degree teaches: focus that does not negotiate with fatigue, and results that only show up when the routine is non negotiable.
Non negotiable discipline.
The method
Three pillars,
zero shortcuts
What you get is not a food list. It is the discipline of an athlete fused with the science of someone who treats clients in fifteen countries.
Real food, with flavour, with visual guides that make the day easier. The end of the restrictive diet nobody sustains for three weeks.
Lasting results demand a change of mind, not only a change of plate. This is where most people fail, and where the follow up earns its keep.
Advanced therapies
Elite
protocols
Anyone on GLP-1 analogues, peptides or hormone therapy needs nutritional support that matches. Without it you lose lean mass, collect side effects and give the result back a few months later.
A food plan tuned to work with the therapy instead of against it.
Nutritional strategy to preserve lean mass, manage side effects and sustain long term health.
Guidance on how your nutrition interacts with the protocol you are on, alongside the physician who prescribes it.
Prescribing medication and hormones is a medical act. What you get here is the nutritional support that makes the protocol work safely.
Proof
Results that
speak for themselves
More than sixteen thousand people treated across fifteen countries, from New York to Tokyo. Below, a small sample, published with consent.
Results vary from person to person and depend on adherence to the protocol. Images published with consent.
From the people who lived it
Not a promise.
A report.
Feedback from people who followed the protocol with a full calendar, travel, small kids and real life happening at the same time.
"Marcelo, you completely changed the way I deal with food. It is not a diet, it is a real lifestyle. Today I can keep it up for the long run. Real food, with flavour, with results. You know what you are doing. Thank you."
Juliana R."Marcelo, you saved my marriage in 90 days! My energy is back, my mood changed... My wife is thanking you too, we are fans for life! 🙏"
Rodrigo M."The suffering is over! In just 15 days of detox I lost 10 cm off my waist! I swear I am not exaggerating! I will never forget you, nutrition monster, thank you!"
Thiago S."Honestly, I paid for the consulting thinking it was 'just another one'. It was the best investment of 2025. The plan is really well thought out, no nonsense, and the results show up fast. You really know what you are doing!"
Camila F."Hey brother. My libido was on the floor and my vitality was gone with the stress. After 2 months on your plan all that energy came back. Thanks brother, you are the man."
Bruno A."Nutri, my fear of cooking is gone! Your support material with the photos of the food and the supplements is genius. You made my life 1000% easier. Five star consulting, thank you, and I will absolutely refer you."
Patrícia L.Real client feedback, published with consent. Names withheld for privacy.
How it works
Choose your
level of commitment
In person in Rio de Janeiro or online in any time zone. Every plan includes an individual food plan, the full support material and direct messaging support with Marcelo, 24/7.
In person, Rio de Janeiro
Monthly
- 2 appointments
- Full anthropometry
- Photo and video record
Bimonthly
- 4 appointments
- Full anthropometry
- Photo and video record
Quarterly
- 6 appointments
- Full anthropometry
- Photo and video record
Half year
- 12 appointments
- Full anthropometry
- Photo and video record
Yearly
- 24 appointments
- Full anthropometry
- Photo and video record
Online, with video calls
Monthly
- 1 video call
- Individual food plan
- 24/7 messaging support
90 days
Most chosen
Quarterly
- 3 video calls
- Protocol adjusted at every phase
- 24/7 messaging support
- Full support material
Bimonthly
- 2 video calls
- Individual food plan
- 24/7 messaging support
How to start
- Pick the format and the duration.
- Send the request with your time zone.
- The team confirms pricing, schedule and next steps.
Add on
Optimised training plans, designed to work in synergy with the food plan. Available for thirty, sixty and ninety day blocks.
No refunds for withdrawal from treatment. Plans are transferable to a third party.
Beyond consulting
Products
Programs and materials for people who want to start on their own or add to the follow up.
Community
Langs System
Protocols, weekly support calls and access to the methodology without going through the consulting calendar.
Join the community → ProtocolFase de Choque
Entry program for women, focused on unlocking the metabolism in the first weeks.
See the protocol → ProtocolSeca Turbo
Entry program for men, focused on abdominal fat.
See the protocol → ProtocolSummer Protocol
Sixth edition. A shock plan to lean down and get defined in time for summer.
See the protocol → Ebook50 Low Carb Sweet Recipes
Fifty low carb dessert recipes to kill the craving without leaving the plan.
Buy the ebook → FreeThe Peptide Bible
An immersion for health professionals on peptides and advanced therapies.
Get access → TrainingOptimised plans
Periodisation designed to work in synergy with the food plan.
See the plans →
What comes with it
The support
material
- Recipe ebooks
- Shopping list
- Supplement buying guide
- Glossary of prescribed supplements and compounds
- Diet matched to your training and level
- The nutritionist's commandments
The next
result is yours
New client spots are limited because the support comes straight from Marcelo. Not a bot, not an assistant, not a reply three days later.
We reply within one business day.
Prefer to talk first? Send a direct message on @nutrimarcelolangs.
