Daily gut-brain supplements, made by an ER doctor

Your gut has a pattern. Start with the formula built for it.

MGB+ is our line of daily gut-brain supplements. Every one shares the same base, a well-absorbed form of vitamin B1 (thiamine) and magnesium, then Clear, Cool, and Calm each add support for a different pattern.

4,000+ Customers
432 Verified reviews
4.7★ Avg. rating
MGB+ Trio: Clear, Cool, Calm formulas
Choose your starting path

Know the pattern? Start there.

Have more than one? The Core Trio covers all three. See the Trio →
Why BellyMD is different Not a probiotic. Not a proprietary blend. Not fairy dust.
MGB+ CoreLipid-soluble B1 + magnesium glycinate.
Pattern-firstClear, Cool, and Calm match symptom clusters, not isolated symptoms.
Open formulaEvery active dose disclosed. No proprietary blends.
4.7★ Average ratingAcross 432 verified Judge.me reviews. 12 Week guaranteeTry your first order for up to 12 weeks. If it is not the right fit, get a full refund. ER Physician-formulatedBuilt with clinical discipline: real doses, clear patterns, and no proprietary blends.
Rick Pescatore, DO
The founder

Built by an ER physician who kept seeing the same missing pattern.

Normal labs. Normal scans. Real symptoms. Bloating, nausea, fog, fatigue, burning, and mornings that start wrong. I built MGB+ so people could match what they feel to a formula made for it.

I'm Rick Pescatore, D.O., an emergency physician and former State Chief Physician. I built BellyMD to make these patterns easier to name, track, and support.

Read the founder story
Rick Pescatore, DO
Emergency Medicine · Former State Chief Physician
Scientific Advisory Board

Reviewed by independent clinicians.

Emergency medicine, pediatric GI, and research physicians reviewed the BellyMD framework, formulas, and research direction.

Joshua D. Niforatos, M.D., M.T.S.

Joshua D. Niforatos, M.D., M.T.S.

Emergency physician and meta-researcher focused on evidence quality and clinical decision-making.

Johns Hopkins School of Medicine

Sergey M. Motov, M.D.

Sergey M. Motov, M.D.

Emergency physician and clinical researcher known for pragmatic pain-management trials.

Maimonides Medical Center, Brooklyn

Patrick Reeves, M.D.

Patrick Reeves, M.D.

Pediatric gastroenterologist focused on clinical action plans and practical symptom management.

Brooke Army Medical Center

PressCNNPhiladelphia InquirerMSNBC
The gut-brain newsletter

Smarter about your gut, every week.

One short email a week from an ER physician. Plain-language gut-brain science, what's actually new in Rome V, and the small daily choices that add up.

No spam. Unsubscribe in one click. No freebie PDFs you'll never open.