Physician-Formulated Supplements for Sensitive Stomachs
Low FODMAP Certified. Gut-Friendly. Trusted by IBS, SIBO & GLP-1 Patients Nationwide.
Why 10,000+ Patients Trust Dr. Onyx's Formulas
"I'm a physician with IBS. I created Casa de Santé because I couldn't find supplements that didn't make my own symptoms worse. Every formula starts with one question: will a sensitive stomach actually tolerate this?" — Dr. Onyx Adegbola, MD PhD
🧬 Low FODMAP Certified — Every product avoids the high-FODMAP triggers that cause bloating, gas & IBS flares
💊 GLP-1 Companion Designed — Formulated for the digestive changes that come with Ozempic, Wegovy & Mounjaro
🔬 Third-Party Tested — Independent lab verified. cGMP facility. No high-lead contamination.
Support digestive comfort and stay consistent with your routine.
Shop by Your Digestive Need
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Low FODMAP Supplements
For IBS, SIBO & sensitive stomachs
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GLP-1 Digestive Support
For Ozempic, Wegovy & Mounjaro user
Shop Supplement Bundles — Save More, Feel Better
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Gut Health Starter Bundle
Everything you need to start GLP-1 treatment
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Protein & Muscle Preservation
Prevent muscle loss while on GLP-1s
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Nausea & Digestive Comfort
Supplements to ease GLP-1 stomach discomfort
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Constipation & Regularity Support
Support motility during GLP-1 treatment
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Hair, Skin & Nail Support
Nourish from within during weight loss
Science-Backed, Stomach-Approved
Don't Just Take Our Word For it! Here's What Our Customers Think:
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★★★★★
“Week 2 on semaglutide, the bloating and nausea made me want to quit. I added Casa de Sante’s digestive support and it was a game-changer. Meals sat better, less discomfort, and I stopped dreading dose day. It’s now part of my weekly routine.”
Megan -
★★★★★
“I was losing weight, but also felt flat and weak. The GLP-1 Muscle Defense combo made it easier to hit my protein intake without upsetting my stomach. My strength stopped sliding, my energy came back, and my labs looked better at follow-up.”
DR K. -
★★★★★
“I didn’t expect constipation to be the hardest part of GLP-1s. I tried random gut products and felt worse. Casa’s low FODMAP approach felt gentle and predictable and my regularity improved without cramps or urgency. I wish I’d started sooner.”
James T.