How it works

Marek's Guided Optimization® Program combines advanced lab testing, a dedicated health coach and medical provider, and a personalized treatment plan, all built around your data.

Resources

The process

1

Start your assessment

Complete your 45-min intake assessment

2

Get your labs drawn

4,000 partnered lab locations nationwide

3

Review with your coach

Screen-by-screen lab review

4

Receive your protocol

Treatment delivered to your door

See the full process

Why Marek

The only program pairing you with a dedicated health coach and medical provider, built on precision diagnostics, with no subscription required.

Resources

Meet our co-founder

Derek

Co-Founder · MPMD Podcast

"Over time, I found it incredibly difficult to get medical oversight for myself and my family that reflected the latest research, and that was preventative. That's why I started Marek Health."

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Derek, Co-Founder

What we test

Every client's lab panel is hand-selected from 1,000+ available biomarkers, built around their specific goals.

Treatments

700+ medical provider-prescribed therapies built from your labs. Browse by category or explore the full formulary.

Rianna Capelj

Health coach

Rianna Capelj

Health Coach

When you have your health, you have a thousand wishes. When you lose it, you have only one.

About Rianna

Rianna is based in Phoenix, Arizona and holds a B.S. in Health Sciences with a pre-medical concentration. She is certified in performance training and nutrition science through the National Academy of Sports Medicine, as well as somatic therapy through the Emotional Release Institute. She served on the Executive Board for the American College of Lifestyle Medicine Training Division and contributed to published research focused on disease prevention and type 2 diabetes reversal. Rianna has supported over 1,000 individuals in looking and feeling their best from the inside out, improving energy, strength, confidence, and long-term vitality through advanced lab testing and biomarker interpretation. Her clinical focus includes hormone optimization, metabolic restoration, inflammation reduction, sustainable fat loss, gut health, injury recovery, stress regulation, and longevity enhancement. She supports patients through peptide protocols, hormone therapy, targeted supplementation, and evidence-based holistic lifestyle strategies to address root causes rather than mask symptoms. Rianna delivers tangible value in every session, equipping clients with practical strategies they can implement immediately, even within busy schedules.

Rianna's Spark Notes:

Philosophy and Approach

Rianna believes true health begins by identifying and correcting root causes, not simply managing symptoms. Her approach integrates advanced lab analysis, peptide-supported protocols, hormone strategy, and precision lifestyle interventions to restore long-term vitality. She views the body as an intelligent system that responds when properly supported. By combining diagnostic insight with practical implementation, she helps clients look and feel their best from the inside out.

Personal Life

Outside of work, Rianna is deeply committed to personal growth and living with intention. She values discipline, integrity, and self-improvement, prioritizes strong relationships and community service, and believes in long-term health and purpose. Her guiding principle: leave every person and place better than she found it.

Publications

Contributing author to a peer-reviewed publication in the American Journal of Lifestyle Medicine, supporting the American College of Lifestyle Medicine’s position statement on Type 2 Diabetes remission through evidence-based lifestyle intervention. Publication (American Journal of Lifestyle Medicine): https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7692017/ Conducted and presented original research examining behavioral change following preventive health surveys and its implications for preventive and population health. Research Poster: https://drive.google.com/file/d/1-ecNzsls2-2zrMTPLfHd5QR1DEfiqBdQ/view?usp=drivesdk

Connect with Rianna today to explore how their expert guidance can help you achieve your health and wellness goals. Schedule your consultation now and take the first step towards a healthier, more optimized you.

Get started with Rianna

Your biology has answers.

Custom labs, a dedicated care team, and treatment built on your biology, not guesswork. One program, built around you.

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HIPAA compliant · We never sell your data