Guide13 min read · Six chapters · Gut

Your gut map, one marker at a time

A plain-language tour of a stool panel and what each finding changes.

Dr. Nina Ross, ND; Ph.D
Nina Ross, ND; Ph.D
Naturopathic doctor · March 3, 2026 · Medically reviewed by Dr. Nina
A GI-MAP stool panel result laid out for review
Twelve pages of markers, and about six of them decide the plan.
The short answer

A gut panel looks intimidating and mostly is not. Six markers do the heavy lifting: digestive capacity, inflammation, the immune layer, the good bacteria, the opportunists, and the enzyme that recycles your estrogen.

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A stool panel arrives as twelve pages of unfamiliar names and coloured bars, and almost everyone reacts the same way. They scan for anything in red, decide they are full of parasites, and arrive genuinely worried.

Chapter oneWhat a gut panel actually measures

These panels use PCR to count the DNA of what lives in your gut, alongside markers for how well you digest, how inflamed you are, and how your immune layer is holding up.

The counting part is impressive and also the part people over-read. A named organism at a low level is usually a normal resident rather than an invader, and treating every red bar is how people end up worse.

The value is in the interpretation, not the panel. The same twelve pages produce very different plans.

The value is in the interpretation, not the panel. The same twelve pages produce very different plans.

Chapter twoThe six markers that decide the plan

Of everything on the report, six markers change what we actually do. The rest is context, useful for confirming a picture rather than driving a decision.

This is the part I wish more people knew before they pay for one of these: the value is in interpretation rather than in the panel. The same twelve pages produce very different plans depending on who reads them.

A meal chosen to support digestion during gut repair
Digestive capacity gets addressed before anything aimed at bacteria.

Chapter threeDigestive capacity comes before anything else

Pancreatic elastase tells us whether you are producing enough enzyme to break food down. When it is low, nothing downstream is going to work properly, and that becomes the first target.

Steatocrit tells us about fat digestion, which points at bile. Both of these come before anything aimed at bacteria, because feeding undigested food to a disturbed population makes the population worse. This is the bloating conversation in audio if you prefer.

Chapter fourInflammation and the immune layer

Calprotectin measures inflammation in the gut wall directly, and it is the marker that decides whether we need to involve a gastroenterologist rather than proceeding alone.

Secretory IgA is your gut immune layer. Low means your defences are worn down, often after a long stressful stretch, and high means they are actively fighting something. Both change the order of treatment.

A woman whose cycle settled once her gut was treated
The estrogen recycling marker is where gut work and hormone work meet.

Chapter fiveThe estrogen recycling marker

Beta-glucuronidase is the one nobody expects on a gut panel. It is the enzyme that unpackages estrogen your liver has already prepared for removal, sending it back into circulation.

High readings genuinely explain heavy cycles and breast tenderness, and they are invisible on a blood hormone panel. This is where gut work and hormone work turn out to be the same work.

Chapter sixWhat the first six months look like

The first six months follow a fairly consistent order: digestion first, then inflammation, then rebalancing the population, then rebuilding the lining, then a retest to see what actually moved.

Weeks 1 to 4Digestion first. Enzymes, bile support, and how you eat before anything else.
Months 1 to 2Inflammation calmed and the immune layer supported, in that order.
Months 2 to 4Rebalancing the population, which is where antimicrobials belong if they belong at all.
Months 4 to 6Rebuilding the lining, then a retest against your own earlier panel.

We retest at ninety days for the markers we targeted, and the panel we compare against is your own previous one rather than a textbook, because your baseline is the only fair comparison.

Take this with you
01A named organism at a low level is usually a resident. Treating every red bar makes people worse.
02Six markers decide the plan. The rest of the report is context.
03Digestive capacity gets fixed before anything aimed at bacteria.
04Beta-glucuronidase links gut work to heavy cycles, and blood panels cannot see it.
05Retest against your own previous panel rather than against a textbook range.
Dr. Nina Ross, ND; Ph.D
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Dr. Nina Ross, ND; Ph.D
Nina Ross, ND; Ph.D
Naturopathic doctor · Board-certified trichologist · Atlanta

Dr. Nina reads the full panel, connects it to how you actually feel, and builds the plan from there. She sees patients in Atlanta and virtually worldwide.

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