Precision Performance Program | Rosa Keller Nutrition
Precision Performance Program

Stop Guessing. Start Measuring.

A testing-driven nutrition program for high performers, from competitive athletes to the 30-year-old training for their first marathon, built on gut microbiome analysis, genetic testing, clinical labs, and body composition data, not guesswork.

Led by Dr. Rosa Keller, PhD, RD: nutrition scientist with doctoral training in analytical chemistry and metabolomics from Oregon State University, and clinical dietitian training completed at UCSF.
See If You Qualify 12 weeks or 6 months. One program.
The Problem 02 / 09

Most nutrition advice is written for the average person.

You have a specific goal and it deserves a specific plan, with your specific biology in mind.

Generic macro targets. Recycled meal plans. Supplement recommendations based on nothing but a questionnaire.

Whether you're chasing a PR or training for your first real event, that approach leaves results on the table. Two people working toward the same goal can respond to identical training and diet completely differently. The difference sits in your gut microbiome, your genetics, your lab markers, and your body composition.

Those things are measurable, and make a world of difference in your success.

The Program 03 / 09

What the Program Includes

Gut

Gut Microbiome Testing

A full analysis of your gut bacteria, diversity, and how they affect digestion, inflammation, and recovery.

DNA

Genetic Testing

Nutrigenomic analysis to identify how your body processes nutrients, and what's actually actionable.

Labs

Clinical Lab Panel

Blood work covering the biomarkers that matter for energy, recovery, and metabolic health.

Body Comp

DEXA / InBody Body Composition

Precise measurement of lean mass, fat mass, and change over time.

Intake

Cronometer Nutrition Tracking

Ongoing intake tracking so recommendations are based on what you actually eat.

The Process 04 / 09

A Clear Three-Phase Process

PHASE 01 - BASELINE

Baseline

Complete testing across microbiome, genetics, labs, and body composition. We establish where you actually stand, not where you think you stand.

PHASE 02 - INTERVENTION

Intervention

A nutrition protocol built specifically from your results and tied to your performance goal. Ongoing tracking and one-on-one coaching with Dr. Keller.

PHASE 03 - RETEST

Retest

We measure again. Improvements are shown in data, not in how you feel about the process.

Your Timeline 05 / 09

Two Options. One Program.

Option A

12 WEEKS

Full baseline testing, personalized protocol, coaching, and a follow-up retest. Best for high performers with a specific event or a defined short-term performance target.

Sessions6 sessions
TestingGenetic + gut microbiome
RetestAt week 12
Investment$3,200
Apply Now
Results 06 / 09

Results, in Numbers

Case Study

Active client, multi-day mountaineering objective

He trained regularly with a personal trainer, plus recreational cycling and running. He wasn't underweight or malnourished, but his fueling didn't match his training output. Inconsistent protein, poor workout timing, no strategy for hard days versus rest days.

We built a baseline eating pattern he could actually sustain. Smoothies and easy proteins for consistency. Homemade dinners he could batch and reheat. A simple framework for adjusting food and carbs up on hard training days, down on easier ones.

As his trip approached, we added a carb-loading protocol for the days before, an hourly fueling strategy for the climb itself, and a targeted supplement protocol.

Tracking was inconsistent throughout the program. Missed logging, repeated easy meals, life events that pushed sessions back. The plan flexed around it instead of demanding perfect adherence, leaning on general principles like relying on soups, broths, and smoothies during rough patches.

He reported improved energy and reduced fatigue during training, hit new personal records in key lifts, and completed his mountaineering objective without the lagging or soreness he'd previously experienced.

Outcomes above are self-reported by the client, including training performance, energy, and recovery. No formal body composition or lab retesting is referenced in this account.

Why Dr. Rosa Keller 07 / 09

The Credentials Behind the Protocol

Dr. Rosa Keller, PhD, RD
  • 01

    PhD, doctoral training in nutrition science.

  • 02

    Registered Dietitian, clinical training completed at UCSF.

  • 03

    Research background in dietary nitrate, leafy green bioactivity, and gut microbiome science.

  • 04

    "As co-owner of a restaurant, I know food has to taste good and feel culturally rooted before it can do anything for your health."

  • 05

    "Passionate about bridging culture, community and food to help you integrate goals with real life."

FAQ 08 / 09

Questions Worth Asking

What tests are involved, and how are they administered?+
Each client receives two at-home test kits. a genetic test (cheek swab) and a gut microbiome test (stool sample). Both kits are mailed directly to you, and once complete, you mail them back for lab processing. Dr. Keller then reviews your results with you one-on-one, translating the data into a daily routine tailored to your biology, your goals, and your life. All client information is kept private and secure.
How long is the program, and what is the time commitment each week?+
The 12-week program is built for clients with specific goals they want to reach on a shorter timeline. It includes sessions every 1 to 2 weeks, depending on your schedule. The 6-month program is designed for clients who want more time to build their knowledge of nutrition and their own health data. Sessions are spaced every 2 to 4 weeks, with a focus on long-term health rather than a single performance goal.
What results are typical, and how are they measured?+
Metabolic health: improved cholesterol, blood sugar management, and overall metabolic health. Physical performance: increased lean body mass, faster mile times, improved sports performance, and reduced body fat, measured via body composition analysis. Day to day: higher energy levels, less food noise, and more confidence navigating food as fuel. Progress is tracked using wearable technology, meal tracking apps, and DEXA body composition scans. Results vary by individual and depend on factors like starting health status, adherence, and genetics. This program is not a substitute for medical care, and results are not guaranteed.
How is this different from a standard dietitian consult or an at-home gut test kit?+
An at-home test kit hands you raw data and leaves you to interpret it alone. A standard dietitian consult gives you nutrition guidance but typically doesn't include genetic or microbiome testing. Dr. Keller's program combines both, lab-grade genetic and microbiome testing with ongoing one-on-one coaching that translates your biology into a plan that fits your life, your culture, your food preferences, your schedule, rather than a generic optimization protocol.
What is the investment, and how does pricing work?+
This is a personalized 1:1 program with lab testing and ongoing coaching, not a one-time consult. 12-week program: $3,200, 6 sessions. 6-month program: $4,000, 8 sessions. Both include genetic and gut microbiome testing. Additional apps or tests are not included. In return, Dr. Keller asks that you show up, follow the plan, do your best, and use her as a resource whenever you need it. She's invested in getting you the most out of this.
Do I need to be a competitive athlete to qualify?+
No. This program is designed for clients at every fitness level, from those training for competition to those simply looking to improve their long-term health. What matters is commitment to the process, not current fitness level.
Where is the testing done, and do I need to be in California?+
Testing is done from home via mailed kits, so location isn't a barrier to getting started. For coaching sessions, Dr. Keller is licensed in Arizona, California, Colorado, Connecticut, Hawaii, Indiana, Massachusetts, Michigan, New Jersey, New York, Oklahoma, Oregon, Pennsylvania, Texas, Virginia, and Wisconsin.
Apply 09 / 09

Find Out If This Program Is Right for You

Start with a short application. We'll review your goals and current training, and if the program is a fit, we'll invite you to book a discovery call with Dr. Keller.

You'll hear back within 48 hours.

Start Your Application

We do not accept insurance. This program is FSA / HSA eligible.