Breath gases after a measured sugar drink
You give a baseline breath sample, drink a measured amount of lactulose or glucose, and then collect breath at timed intervals. Microbes that ferment the substrate produce hydrogen or methane. Those gases enter the blood and leave in the breath, where the kit measures them. The pattern of the rise, and when it happens, is the result. A single number without a timeline is not the test.
SIBO breath testing takes a few hours of your morning. You do not eat during the collections, and you do not exercise through them. The review visit afterward often runs 30 to 60 minutes depending on the plan. The test itself is the longer, quieter part, done at home with a timer.
Lactulose or glucose, and the day before
Lactulose and glucose are different substrates. Glucose is absorbed earlier in the small intestine, so it may miss a problem farther down. Lactulose travels farther and can be fermented by ordinary colon bacteria if transit is fast, which is one way a graph gets confusing. Dr. Tara Kohen picks the substrate from the question, not from whichever kit is on the shelf.
The day before is a prep diet, plain foods the instructions list, then a fast. The prep exists so leftover fermentable food does not light up the baseline. Skipping the prep is a common reason a graph is unreadable. If you cannot do the diet because of another medical need, say so before you start. A botched prep is worse than a delayed test.
What a rise on the graph means
A rise in hydrogen or methane after the drink means fermentation happened, and the timing suggests where along the gut that fermentation was likely. An early rise is the pattern people mean when they say small intestinal bacterial overgrowth. A late rise can be ordinary colon fermentation, especially with lactulose. Methane is associated, in many people, with slower transit and constipation. Hydrogen is often discussed with looser stools.
SIBO as a label should follow the graph and the symptoms together. Bloating that is clearly tied to meals is part of the story. Brain fog by itself is not a reason to declare overgrowth. GI-MAP stool testing looks at stool organisms and inflammation markers. It does not draw this gas curve. The two tests are allowed to disagree, and the disagreement is discussed rather than averaged.
False positives, and reading with symptoms
False positives happen. A fast transit time can make colon gas look early. A prep that was not followed can raise the baseline. A substrate that does not match the question can overcall or undercall. Dr. Sani Kohen will say when the graph is messy. A messy graph is not rounded up into a treatment just so the test feels worth the fee.
Symptoms decide whether a borderline rise is acted on. A dramatic rise with a matching story is more useful than a small wiggle in someone who feels well. The lab fee is an additional cost, explained before you order, without a fictional price. A free 20-minute consultation can decide if breath testing is the right question. FRI is out of network, accepts HSA and FSA cards, and provides a superbill for the visit.
What a SIBO Breath Testing visit is like
Expect a quiet morning at home with a timer, a drink that may taste plain or slightly sweet, and tubes or a device you breathe into on schedule. The prep diet the day before is part of the test. Set the day aside. Results are reviewed in person so the timing of the rise can be explained on the graph, not in a one-line message.
You should leave the review knowing whether the pattern was early, late, hydrogen, methane, or too messy to use. Next steps, if any, are matched to that pattern and to how you actually feel. A test that does not match the story is allowed to be set aside.
Dove Canyon, O'Neill trails, and a planned-town schedule
Rancho Santa Margarita spreads into Dove Canyon, Robinson Ranch, Tijeras Creek, and the central town. O'Neill Regional Park and the surrounding trails add climbing that a map of the shopping district does not show. Golf and youth sports fill weekends. Weekdays are often a drive out Antonio or Santa Margarita toward a desk somewhere else. Knees and hips meet the trails. Necks and low backs meet the car. We ask which village you live in because the grade and the drive are not the same in Dove Canyon as they are next to the lake in town.
Lower back pain after the drive out of the hills, and knee pain after O'Neill, are typical reasons to come to La Alameda. Scoliosis questions come from parents who want movement help without a promise that exercise will straighten a structural curve. We will not make that promise.
Santa Margarita Parkway to La Alameda
Santa Margarita Parkway into Mission Viejo, or Antonio Parkway to local streets, covers the trip. About 7 miles and 12 to 20 minutes when the parkway is moving. School traffic changes that. The suite is 26400 La Alameda, Suite 100, Mission Viejo, CA 92691. Park at the building. Monday through Thursday, 9 to 6.
You are close enough to do a real course of care without giving up half a day. Use that. Spacing visits so you can practice the home plan is more valuable than stacking them. Call (949) 312-1754 or begin with the free 20-minute consultation.
Hands-on care and the lab side
Functional movement screening and gait analysis fit a town that hikes and then sits. ART is the soft-tissue option for overuse from sport, not a spa massage. Neurodynamics belongs when leg or arm pain behaves like a nerve.
For non-joint problems, sleep, hormonal imbalance, and gut health each have a page. The city starting point is the Rancho Santa Margarita chiropractor page.
Policies that do not change because you are close
Out of network. Superbill. HSA and FSA accepted. No referral required. We coordinate with physicians and we do not edit their prescriptions. Emergency spine and neurologic symptoms go to the ER.
Drs. Sani and Tara Kohen practice together at FRI. Read the about page and the office page if you want the people and the building before you drive Santa Margarita Parkway.
Questions patients ask
What is the prep diet for?
It clears fermentable leftovers so the baseline breath is not already high. Skipping it can make the graph impossible to trust. If a medical diet conflicts with the prep, the test waits.
Does a rise always mean SIBO?
No. Timing and the substrate matter, and false positives exist. An early rise plus matching symptoms is a stronger case than a rise by itself.
Why might lactulose and glucose disagree?
They travel different distances in the gut. One can miss a far problem. The other can pick up ordinary colon gas if transit is fast. The choice is part of the interpretation.
Is the breath test included in the visit fee?
No. The kit is an additional cost, discussed before you order. The review visit is separate and often runs 30 to 60 minutes depending on the plan.
Related methods and problems for Rancho Santa Margarita
SIBO Breath Testing is one tool inside Functional Medicine. It is not booked as a standalone trick disconnected from the exam. These links are the neighboring methods and the problems that most often lead someone from Rancho Santa Margarita to ask about it.
- SIBO Breath Testing overview
The clinic-wide technique page, without a city attached.
- Rancho Santa Margarita chiropractor
Drive, neighborhoods, and the rest of the care offered to Rancho Santa Margarita patients.
- Functional Medicine
The pillar this method belongs to.
- GI-MAP Stool Testing
GI-MAP is a stool test that uses a PCR-style method to ask about microbes, including possible pathogens, and about selected markers of.
- Food Sensitivity Testing
Food sensitivity testing at Functional Restoration Institute looks at IgG and IgA antibodies to foods. It is not an allergy test, and.
- Nutrition & Supplementation
Nutrition at Functional Restoration Institute starts with food. A supplement is added only when a lab or a clear clinical question calls.
- Organic Acids Test
An organic acids test looks at urine metabolites that can reflect gut microbial byproducts, a higher demand for certain nutrients, and signs.
- SIBO in this city
Small intestinal bacterial overgrowth means microbes are fermenting food higher up than they should, which can bring bloating, gas, and stool changes..
