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By Rick Pescatore, DO · Emergency physician · Former state chief physician
The slow gut has a fuel problem.
A genetic study of 268,606 people, published this year in the BMJ journal Gut, points to one vitamin. No routine blood panel measures it. The check below takes ten seconds.
Step 1. Tap what applies.
Step 2. Tap what is true.
Everything on the shelf treats the pipe.
The gut is a pipe with a motor: muscle in the wall, nerves that fire it. Tap what you have tried.
Four of those act on the contents. One feeds the motor. The study found the motor.
268,606 people. One direction.
The genes that separate a gut on schedule from a gut that is not point to vitamin B1 metabolism, nerve signalling, and gut muscle. People who ate more B1 moved their bowels more often. Twenty-one regions. One direction.
Your multivitamin never reached it.
Queues at a transporter door in the gut wall that fills at small doses. Whatever the door cannot carry leaves in the urine within hours. Swallowing more does not widen the door.
Dissolves in fat and crosses the cell membrane on its own. It does not use the door. Discovered in Japan in 1951, from garlic, and used clinically there for decades.
So I formulated the bottle the shelf should have had.
MGB+ Clear. Allithiamine at 75 mg, the magnesium that switches it on, and five actives that settle the gut-brain signal. Eight actives. Every dose on the label. Two capsules a day with a meal.
See every dose
| AllithiamineFat-soluble vitamin B1. The fuel. | 75 mg |
| Magnesium glycinateSwitches B1 on. | 100 mg |
| PalmitoylethanolamideSettles the gut-brain signal. | 300 mg |
| Artichoke leaf extract | 150 mg |
| Shatavari root extract | 150 mg |
| Ginger extract, 20% gingerols | 100 mg |
| Saffron extract | 30 mg |
| Lithium, as lithium orotateTrace. Disclosed below. | 5 mg |
One bottle is a month. The protocol is three. The gut's wiring does not reset in a week.
New customers: $10 off the first order with code 10OFF, applied at checkout.
Twelve-week money-back guarantee. Not helping? One email refunds your first order, up to three bottles, and you keep them. Subscriptions renew automatically at the price shown until cancelled; skip or cancel anytime from your account.
"I noticed such a significant change and calmness in the gut, I recommended it to family."
For adults with normal labs and the pattern above. Not for pregnancy, nursing, anyone under 18, or anyone on prescription lithium or living with kidney disease without their clinician's say. Clear carries five milligrams of lithium as lithium orotate, a small fraction of a prescription dose, and I would rather say so than have you find it on the label.
Clear is not a laxative. New bleeding, unexplained weight loss, fever, or pain that wakes you at night are a doctor visit this week, not an order.
Is this a laxative?
No. Laxatives act on the contents. Clear is built around the nutrients the gut's nerve and muscle use to do their own work. Most people notice nothing dramatic on day one. That is the point.
How is this different from the B1 in my multivitamin?
Dose and form. About 1 mg of water-soluble thiamine, most of it gone in the urine, against 75 mg of fat-soluble allithiamine that crosses the membrane without the transporter.
Can I take it with my medications?
Ask your clinician and bring the label. Several common prescriptions, metformin and some antidepressants among them, interfere with how the gut absorbs ordinary thiamine. That is one reason the formula uses the fat-soluble form.
How does the guarantee work?
Twelve weeks from delivery. If Clear is not helping, email support@belly-md.com and your first order is refunded, up to three bottles. You keep the bottles. One refund per household.
The shelf treated the pipe. The motor runs on B1.
Start the 90-day protocolThis is an advertisement for MGB+ Clear, a dietary supplement made by BellyMD. Dr. Pescatore is the founder of BellyMD. The 2026 study in Gut is a genetic association study; it did not test MGB+ Clear or any supplement. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual experiences vary. Consult your clinician before starting any supplement, especially if you are pregnant, nursing, taking medication, or living with a medical condition.