ilali labs
Infant gut microbiome testing · South Africa

See which bacteria are growing in your baby’s gut.

In the first years, trillions of bacteria settle in your baby’s gut.

One stool sample shows which bacteria are there and how that community is developing.

Order a kit See a sample report
One stool sample/Collected at home in 5 min/Report in a few weeks
A baby lying on their front on a pale sheet, lifting their head and looking to the side
Composition infant · 5 mo
Bifidobacterium · 38%
Veillonella · 9%
Bacteroides · 14%
Why it matters

Why the early gut matters for your baby.

Your baby’s gut community forms over the first years of life. These bacteria do more than help with digestion: they support the gut barrier and help the immune system develop.

These early years are a window that doesn’t come again. How your baby was born, fed and cared for all shapes which bacteria take hold early on, and once the community is established it’s harder to change.

Scientists are studying how the early gut microbiome, including levels of Bifidobacterium, the milk-digesting bacteria, relates to the developing immune system and to conditions like eczema and allergies.

You can’t change how your baby was born or whether antibiotics were needed. But you can see what their gut community looks like now, instead of wondering: a starting point for understanding one of the most important systems developing in your child’s body.

What changes, and when

The gut changes more in the first three years than it ever will again.

The bacterial community is not fixed. It arrives, shifts and settles over the first years, and where it ends up is largely where it stays.

The gut at three months looks nothing like it does at three years. Different bacteria, doing different things, in four rough chapters. So the same test tells a different story depending on when you take it.

Diversity
how many kinds of bacteria live there
adult-like low
Milk
~0–6 months
milk is the main food
Early weaning
~6–12 months
first solids arrive
Toddler
~1–2 years
the diet widens
Settling
2+ years
adult-like and steady
Milk-adapted Bifidobacterium
Often the largest share, fed by breastmilk sugars
Share shrinks as others grow
A smaller share
A small, steady share
Fibre-degraders
Barely present
Arrive with solids
Growing share
Well established

Scroll sideways to see all four →

One test measures a single point on this curve.
Ages are approximate. These shifts follow feeding, not the calendar.

Low diversity early is not a deficit

A young infant's gut is meant to be a small, specialised community. Diversity climbs as the diet widens.

The dip is supposed to happen

Bifidobacterium leads while milk is the main food, and its share falls back once solids arrive.

Then the fibre eaters arrive

Bacteria like Faecalibacterium, Blautia and Roseburia ferment fibre into short-chain fatty acids that nourish the gut lining.

A test is a snapshot of a moving picture.

What you can’t tell from the outside

The birth story doesn’t tell you what’s inside.

A caesarean birth, antibiotics, formula, arriving early, time in the NICU: each of these shapes the early gut. But shaping is not deciding. Two babies with the same start can look quite different, and a textbook start is no guarantee.

A baby born vaginally and breastfed can still have very little Bifidobacterium.

That is the whole reason to measure rather than assume. Most samples look reassuringly typical, whatever the start; where something stands out, we say so plainly.

What shifts the odds
Caesarean birth
A vaginal birth passes on one set of microbes, a caesarean another. Researchers can still see the difference months later.
Antibiotics
They reshape the community whenever they’re given, in the newborn days or later on. Antibiotics in labour are routine for some births and reach the baby’s earliest gut too.
Formula feeding
Shapes the community differently to breastmilk, often with less Bifidobacterium early on. A normal variation.
Arriving early
A premature gut starts from a different place and takes its own path.
Time in the NICU
The environment and the interventions both shape the gut differently to a term baby going straight home.
The research on these →
What's in your report

So what does a test actually tell you?

Three things on every report, and a fourth if you test again. Below is a short peek inside.

01COMPOSITION

The bacteria present

Which bacteria are there and in what proportion, from the leading groups down through the long tail.

Bifidobacterium38% Bacteroides14% Veillonella9% Streptococcus7% everything else32%

So what?You find out what’s actually in there, instead of guessing.

02DEVELOPMENT STAGE

How it’s developing

From this one sample: which chapter your baby is in, which groups lead at their age, and what’s expected to shift next.

MilkWeaningToddlerSettling

So what?A number that’s perfectly normal at four months reads very differently at two years. This is the context.

03EARLY MARKERS

Key early markers

Above all Bifidobacterium, which should be one of the most common bacteria in the first months.

this sample
the level we’d note

So what?A few things worth knowing, not forty numbers to decode.

04Over time

If you test again

Your baby’s own samples side by side, months apart, so you can see which way things are heading.

first testsecond testnext?

So what?One test is a snapshot. Two is a direction.

ilali · gut microbiome report Illustrative · five months
01 The bacteria present
genus level · illustrative · South African reference in progress
Bifidobacterium 38%

One of the defining groups of the infant gut. Some of its members are specially adapted to digest the sugars in breast milk, which is part of why it’s often most common in breastfed babies.

Bacteroides 14%

Versatile digesters that tend to become more prominent as solid foods are introduced.

Veillonella 9%

A common early resident of the infant gut, often appearing alongside milk feeding.

Streptococcus 7%

Among the first bacteria to settle in, frequently passed on through feeding.

Named to species where the sequencing allows.

Bifidobacterium
B. longum21%
B. breve12%
B. bifidum5%
Subspecies need shotgun sequencing

Comparison to other South African infants appears here as the reference grows. Every sample helps build it.

this sample bars show share of the whole community · ranges pending
02 How it’s developing

Typical of a milk-fed gut at five months: the milk specialists lead, and the fibre-degraders that arrive with solids are still barely present. Expect that balance to shift once solids are established.

03 Key early markers

Bifidobacterium is present at 38%, on a sample read deeply enough to say so. We only note it when this group is largely missing, and only when the sample is deep enough to say so confidently.

In plain language

“At 38%, Bifidobacterium is clearly present at five months, well clear of the level we would note. The milk specialists are present and active. Nothing here needs action. If you’d like to look again once solids are established, three to six months from now is the interesting moment.”

How ilali started

I wanted this test for my own daughter. It didn’t exist here.

My daughter went straight to the NICU after she was born, with a lung infection, and spent her first week on antibiotics. I had spent years studying the gut during my PhD in Biotechnology at Cambridge, so I knew what a week of antibiotics does to a microbiome, especially one that’s barely started. I went looking for a test to show me what was happening in hers. It existed in Europe and the US, but not here, and almost all of it was built on infants nothing like ours. So I started ilali.

The research behind it →
The scope

What this test is, and what it isn’t.

ilali offers a wellness test, not a diagnostic one. It describes the bacteria in your baby’s gut and how the community is developing. It does not diagnose illness, detect pathogens, or predict disease. For anything medical, speak to your paediatrician.

How it works

From kit to report, in a few simple steps.

01

Order your kit

A single tube arrives at your door, pre-filled with preservative, with a small spoon built into the lid. Nothing to refrigerate.

02

Collect the sample

A pea-sized stool sample at a nappy change, or from the potty. Close the tube, shake, and the preservative keeps it stable at room temperature.

03

Register your kit

Enter the ID from your tube on our site, along with a few quick details. We can’t process a sample without this. It’s what links the tube to your baby in our database.

04

Send it back and read your report

We automatically send a courier to collect your sample, or you can choose to ship it yourself. A few weeks later we send you the report via email.

ilali home collection kit, open with instructions and collection tube
Questions parents ask

Straight answers.

Is this a medical test?

No. It’s a real lab measurement, but not a diagnostic. It describes what’s present in your baby’s gut, and it isn’t a substitute for medical advice. For anything about your child’s health, your paediatrician is the right person.

When should I test?

Any time in the first three years, and the earlier the more informative. Many families test once around two to three months and again after solids are established.

What if the result worries me?

The report is written to be read calmly. Most of what you’ll see is the normal variation of early life. If something genuinely stands out, we explain plainly what it means, and what it doesn’t.

Who is this for?

ilali is designed for babies and children from about one week to three years old, the window when the gut microbiome is developing fastest. Below one week it’s too early to read the community reliably; by around three it’s settled into a more adult-like pattern.

What’s in the kit?

One collection tube (preservative already inside, spoon built into the lid), a how-to-collect sheet, and the packaging to send it back. Nothing needs refrigerating at any point.

What if the sample can’t be read?

Occasionally a sample doesn’t yield enough DNA to report on honestly. If that happens we tell you, and send a replacement kit at no charge. We’d rather re-collect than report a result we don’t trust.

Can I test again later?

Yes, and it’s the most useful thing you can do. A second test shows how the community is changing rather than where it stood once. Repeat kits are discounted for families who’ve tested before.

What does it cost?

The first 50 kits are free for South African families. Ongoing pricing will be published here before general sale.

Your data

What happens to your child’s data.

We know your child’s health data matters to you, so these are the principles behind how we treat it.

Your report is yours

It belongs to you and your child, not to us. You can ask us for it, or ask us to delete it.

POPIA from the first sample

Consent and data handling were built to South Africa’s data protection law before we sequenced anything, not retrofitted later.

Never shared

We’ll never share any personal details about you or your child with any third party.