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.
Mile Square, a flat grid, and long freeway days
Fountain Valley is flat, which sounds simple and is not. Mile Square Park gives people a long, level loop for walking and cycling. The rest of the city is a grid of Slater, Brookhurst, and Euclid: short drives, a lot of sitting, and jobs that may be in the city or up the 405. A flat park loop is a clean test of walking tolerance. Pain that waits until the car, not the loop, points us at sitting and at the spine rather than at a hill that does not exist here.
Low back pain and sciatica are evaluated with that distinction. Neck pain often belongs to the 405. Knee pain in cyclists around Mile Square gets a bike-and-hip history, not a generic brace.
405 to the 73
Take the 405 south to the 73 toward Mission Viejo, then to La Alameda. About 20 miles and 30 to 45 minutes. The address is 26400 La Alameda, Suite 100, Mission Viejo, CA 92691. Park at the building. Hours run Monday through Thursday, 9 to 6. Leaving Fountain Valley after 4 and expecting a calm neck exam is optimistic. Book earlier.
Phone (949) 312-1754. The complimentary consultation is 20 minutes. Use it if the drive makes you want a smaller first commitment. If you already know you want testing, book the evaluation so we are not talking in circles.
Techniques and medical problems we will and will not own
Neurodynamics and McKenzie Method care are central for nerve and disc patterns. Gait analysis earns its place when the Mile Square loop and the sidewalk tell different stories. Cupping is a decompression tool, not a detox.
We also see metabolic syndrome and diabetes questions beside the physician who manages medication. We do not change those drugs. The city page is the Fountain Valley chiropractor page.
Payment
Out of network. Superbill. HSA and FSA. No referral. Bring a medication list if you want labs or if you are here for a systemic symptom. Imaging is helpful and not required for every back pain visit.
Drs. Sani and Tara Kohen are on the about page. The building is on the office page.
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 Fountain Valley
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 Fountain Valley to ask about it.
- SIBO Breath Testing overview
The clinic-wide technique page, without a city attached.
- Fountain Valley chiropractor
Drive, neighborhoods, and the rest of the care offered to Fountain Valley 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..
