The MD/PhD Difference: Science Over Hype

The wellness industry is confusing and often misleading. You deserve better.

As a Physician-Scientist (MD/PhD) trained at Columbia, UPenn, and Johns Hopkins, I founded Casa de Sante to cut through the noise. We translate complex medical research into accessible, high-impact protocols you can trust—addressing the root causes of gut imbalance, metabolic shifts, and hormonal changes.

Stop guessing about your health. Experience the difference physician-formulated solutions can make.

Physician-Scientist | Lifestyle Medicine Physician | Certified in Obesity Management & Menopause| Certified Nutrition Coach & Personal Trainer (NASM)
Member, American College of Lifestyle Medicine, Institute for Functional Medicine, Obesity Medicine Association, The Menopause Society.

Casa de Santé

by Dr. Onyx MD PhD

Physician-Designed Supplements for
Scientific Precision

Clinical-grade formulations backed by rigorous research, designed by an MD/PhD for optimal efficacy and safety.

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MD/PhD Developed
Science-Backed Ingredients
Clinically Clean
Third-Party Tested

In a Market Full of Hype,
We Deliver Scientific Rigor.

The supplement industry is confusing and often misleading. As an MD/PhD, I founded Casa de Santé to translate complex medical research into accessible, high-impact protocols you can trust.

Dr. Onyx, MD PhD

Physician-Scientist & Founder

"Every formulation is grounded in peer-reviewed research and clinical evidence. No marketing gimmicks—just science-backed nutrition that works."

Meet Dr. Onyx

Targeted Solutions for
Root Cause Resolution

Evidence-based protocols designed to address the underlying mechanisms of health optimization, not just symptoms.

Advanced Digestive Health

Comprehensive gut microbiome support with targeted prebiotics, probiotics, and digestive enzymes for optimal GI function and nutrient absorption.

Key Benefits

  • Microbiome Balance
  • Digestive Comfort
  • Nutrient Optimization

Metabolic Optimization & GLP-1 Support

Advanced metabolic enhancement protocols featuring GLP-1 pathway support for weight management and metabolic health optimization.

Key Benefits

  • GLP-1 Pathway Support
  • Metabolic Enhancement
  • Weight Management

Hormone Balance & Estrobolome

Precision hormone optimization targeting the estrobolome and endocrine system for comprehensive hormonal health and balance.

Key Benefits

  • Estrobolome Support
  • Hormone Optimization
  • Endocrine Balance

Ready to Experience Science-Backed Wellness?

Join thousands who trust Casa de Santé for their health optimization journey.

Start Your Protocol Today
  • GLP - 1 Support (Whey Vanilla) - casa de sante

    Gut Friendly Protein Powders & Supplements

    Physician designed low FODMAP certified protein powders and supplements for sensitive guts.

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  • Personalized Meal Plans

    Dietitian designed meal plans for your specific health goals or sensitivities.

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  • At-Home Lab Testing

    Easy sample kits shipped to your door. Pair with a Dr. Onyx consult or our Personalized Supplement Pack for personalized care.

    Order a Test 
  • Personalized Supplement Pack

    One monthly pouch, precise custom blend of supplements matched to your needs—no more pill clutter or guesswork.

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  • Root-Cause Wellness Consults

    Holistic, lifestyle medicine grounded in science. Specialty focus on menopause, gut-hormone interplay and weight resilience.

    Dr. Onyx MD PhD · PA & CT 
  • Resource Library

    Free tools for your wellness journey: recipes, apps, blogs, videos, etc, for gut health & more.

    Check below the "Resources" tab 

Don't Just Take Our Word For it! Here's What Our Customers Think:

  • ★★★★★

    LOVE LOVE LOVE your products! Digestively challenged persons DREAM come true.Keep em coming!So enjoying your low FODMAP salad dressing and granola!
    Rachel

  • ★★★★★

    I’m so thankful that Casa de Sante exists! IBS sufferers can rejoice and take peace in knowing that high quality, very good tasting, tummy safe alternatives can be found at Casa. I’m a loyal, long term customer.
    Shirl P.

  • ★★★★★

    Amazing! Truly life changing! Casa de Sante's products are amazing, they gave me options I never knew existed with IBS. I am addicted into trying their recipes. Thank you so much!
    Abby T.