Bifidobacterium infantis

Specialized probiotic bacteria naturally found in infant gut that supports digestive health, immune development, and may reduce IBS symptoms

Scientific nameBifidobacterium longum subsp. infantis FormulaLive bacterial culture Molecular weightN/A - Living organism g/mol CASN/A - Probiotic strain

80 absorption score

10 safety / 10

40 USD per month

6 documented interactions

Check it against something

No documented links

Bifidobacterium infantis with:

70 out of 100

No known interaction No documented interaction. Standard timing for each applies.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Significant IBS symptom reduction

Reduces abdominal pain, bloating, and improves overall IBS symptoms

Modulates gut-brain axis and reduces intestinal inflammation Evidence A-grade 4-8 weeks of consistent supplementation

Reduced intestinal inflammation and improved gut barrier

Strengthens intestinal lining and reduces inflammatory markers

Produces anti-inflammatory compounds and strengthens tight junctions Evidence A-grade 2-6 weeks of regular use

Enhanced immune system regulation

Balances immune response and reduces autoimmune activity

Modulates T-regulatory cells and cytokine production Evidence A-grade 4-12 weeks of consistent use

Improved tryptophan metabolism

Optimizes tryptophan breakdown for better mood and gut health

Influences tryptophan pathway toward beneficial metabolites Evidence B-grade 6-12 weeks of regular supplementation

Enhanced nutrient absorption and gut function

Improves vitamin and mineral absorption while supporting digestion

Optimizes gut microbiome composition and digestive efficiency Evidence B-grade 2-8 weeks of consistent use

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Probiotics for Autoimmune Disease Support Gut health & immune modulation 10-100 billion CFU daily B 60% Calcium Bone health & muscle function 1,000-1,200 mg A 30% Turmeric Anti-inflammatory & antioxidant 300-1000mg A 3% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% Vitamin D3 Bone health & immune support 1000-2000 IU A 85% Magnesium Citrate Balanced absorption & digestive support 300-600 mg A 35%

Every pair we checked

12 combinations scored by the engine

Bifidobacterium infantis + Caffeine No documented interaction either way No known interaction 70

Bifidobacterium infantis + Creatine Monohydrate No documented interaction either way No known interaction 70

Bifidobacterium infantis + Vitamin D3 No documented interaction either way No known interaction 70

Bifidobacterium infantis + Calcium Carbonate No documented interaction either way No known interaction 70

Bifidobacterium infantis + Whey Protein No documented interaction either way No known interaction 70

Bifidobacterium infantis + Lactase No documented interaction either way No known interaction 70

Bifidobacterium infantis + Bovine Collagen No documented interaction either way No known interaction 70

Bifidobacterium infantis + DHA No documented interaction either way No known interaction 70

Bifidobacterium infantis + Turmeric No documented interaction either way No known interaction 70

Bifidobacterium infantis + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70

Bifidobacterium infantis + Magnesium Oxide No documented interaction either way No known interaction 70

Bifidobacterium infantis + Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula Enhanced anti-inflammatory and gut barrier benefits Works better together 78

Dosage

Empty stomach morning

Daily1-20 billion CFU

Ibs management1-10 billion CFU daily on empty stomach

Inflammatory conditions5-20 billion CFU daily

Immune regulation5-15 billion CFU daily long-term

Gut barrier repair10-20 billion CFU daily during healing

When to expect it

First Effects1-2 weeks for initial digestive improvements

Peak Benefits4-12 weeks for maximum IBS and inflammatory benefits

Deficiency DevelopmentInfant gut bacteria depleted by modern lifestyle and antibiotics

Toxicity OnsetNo known toxicity - extremely safe probiotic

How to measure it

$300-500

MarkerInflammatory markers (CRP, IL-6), stool microbiome analysis, IBS symptom scores

OptimalReduced inflammatory markers, improved microbiome diversity

Deficient belowLow Bifidobacterium levels, elevated inflammatory markers

FrequencyMonitor during IBS treatment or inflammatory gut conditions

What people actually reported to the FDA

CAERS, 17 reports naming it as the suspect

Most reported effects

Abdominal distension 3

Diarrhoea 3

Vomiting 3

Dizziness 3

Death 2

Excluded from the list above: intestinal obstruction (3). Those are people struggling with the tablet itself, not with the compound.

Named as the suspect 17 reports of 22 that mention it at all

Serious outcome 89% hospitalisation, emergency room or worse

Hospitalization11

Other Serious or Important Medical Event7

Visited a Health Care Provider3

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

Works better with

3 documented

Human Milk Oligosaccharides

Enhanced growth and colonization of B. infantis

HMOs provide specific nutrients for B. infantis metabolism · level A

Anti Inflammatory Herbs

Synergistic anti-inflammatory effects for gut health

Complementary pathways for reducing intestinal inflammation · level B

Omega 3 Fatty Acids

Enhanced anti-inflammatory and gut barrier benefits

Both reduce inflammation through different pathways · level B

What not to take with Bifidobacterium infantis

3 documented

Broad Spectrum Antibiotics

Antibiotics eliminate B. infantis and disrupt gut microbiome

Antimicrobial action kills beneficial bacteria · high significance

Nsaid Medications

NSAIDs may increase gut inflammation opposing B. infantis benefits

NSAIDs damage gut lining and increase permeability · moderate significance

High Stress Levels

Chronic stress may impair probiotic colonization and effectiveness

Stress hormones affect gut microbiome composition · moderate significance

Medication interactions

Discuss these with a pharmacist before combining

antibiotics Moderate

Antibiotics significantly reduce B. infantis viability

What to do: Take probiotics 2-3 hours after antibiotic doses

immunosuppressive-medications Minor

Theoretical infection risk in severely immunosuppressed

What to do: Use caution in severe immunosuppression

Available forms

bioavailability compared

Bifidobacterium infantis 35624 (Clinical strain) 80

Bifidobacterium infantis 35624 (Clinical strain): IBS clinical trials, Anti-inflammatory, Immune regulation, FDA medical food

Food sources

before you supplement

Breast milk (for infants) Natural source with HMOs · 95

Fermented dairy products Variable, typically lower levels · 60

Traditional fermented foods Minimal presence in most foods · 50

B. infantis probiotic supplements 1-20 billion CFU per serving · 80

Too little

deficiency signs

Modern lifestyle depletion of infant gut bacteria:
IBS symptoms including abdominal pain and bloating
Chronic intestinal inflammation and poor gut barrier
Autoimmune conditions and immune system imbalance
Poor tryptophan metabolism affecting mood
Increased susceptibility to gut infections
Compromised nutrient absorption and digestive function

Too much

toxicity signs

Extremely safe with minimal adverse effects:
Temporary digestive adjustment during microbiome rebalancing
Very rare bacterial overgrowth in critically ill patients
No documented serious adverse effects in healthy individuals
Safe for long-term daily use

Who benefits most

ibs-sufferers

Clinically proven to reduce IBS symptoms and improve quality of life

1-10 billion CFU daily long-term

inflammatory-gut-conditions

Reduces intestinal inflammation and strengthens gut barrier

5-20 billion CFU daily

autoimmune-condition-support

Helps regulate immune system and reduce autoimmune activity

5-20 billion CFU daily long-term

mood-gut-brain-axis

Optimizes tryptophan metabolism affecting mood and gut-brain communication

1-10 billion CFU daily

digestive-inflammation-recovery

Supports healing of inflamed or damaged intestinal tissue

10-20 billion CFU daily during recovery

Where to buy it

compare forms first

Look for Bifidobacterium infantis at 1-20 billion CFU per serving. The form that matters here is Bifidobacterium infantis 35624 (Clinical strain).

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What else affects it

Beyond other supplements

High stress levels

Chronic stress may impair probiotic colonization and effectiveness

Stress hormones affect gut microbiome composition

How it works

Modulates gut-brain axis reducing IBS symptoms and visceral pain
Produces anti-inflammatory compounds reducing intestinal inflammation
Strengthens intestinal tight junctions improving gut barrier function
Regulates T-regulatory cells balancing immune response
Influences tryptophan metabolism toward beneficial pathways
Competes with pathogenic bacteria for nutrients and adhesion sites

Key findings

what the evidence supports

Clinically proven effective for IBS symptom reduction
Strong evidence for reducing intestinal inflammation
Unique ability to metabolize human milk oligosaccharides
FDA recognition as medical food for IBS management

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Bifidobacterium infantis?

Documented effects: Significant IBS symptom reduction; Reduced intestinal inflammation and improved gut barrier; Enhanced immune system regulation; Improved tryptophan metabolism. Reduces abdominal pain, bloating, and improves overall IBS symptoms

How much Bifidobacterium infantis should you take per day?

The common daily range is 1-20 billion CFU. By goal — ibs management: 1-10 billion CFU daily on empty stomach; inflammatory conditions: 5-20 billion CFU daily; immune regulation: 5-15 billion CFU daily long-term; gut barrier repair: 10-20 billion CFU daily during healing.

When is the best time to take Bifidobacterium infantis?

Empty stomach morning. First effects are typically reported within 1-2 weeks for initial digestive improvements.

What are the side effects of Bifidobacterium infantis?

At excessive doses: Extremely safe with minimal adverse effects:, Temporary digestive adjustment during microbiome rebalancing, Very rare bacterial overgrowth in critically ill patients, No documented serious adverse effects in healthy individuals, Safe for long-term daily use. Safety rating at normal doses is 10 out of 10.

What should you not take with Bifidobacterium infantis?

Separate it from Broad Spectrum Antibiotics, Nsaid Medications, High Stress Levels by two to four hours. Antibiotics eliminate B. infantis and disrupt gut microbiome

Does Bifidobacterium infantis interact with medications?

Documented interactions with antibiotics, immunosuppressive-medications. Discuss these with a pharmacist before combining.

How do you know if you need Bifidobacterium infantis?

The marker is Inflammatory markers (CRP, IL-6), stool microbiome analysis, IBS symptom scores, optimal range Reduced inflammatory markers, improved microbiome diversity. Common deficiency signs: Modern lifestyle depletion of infant gut bacteria:, IBS symptoms including abdominal pain and bloating, Chronic intestinal inflammation and poor gut barrier, Autoimmune conditions and immune system imbalance.

Taken for

38 Joints & Bones

Vitamin D3 · Calcium Carbonate · Bovine Collagen

74 Digestion

Lactase · Lactobacillus acidophilus · Protease