Bifidobacterium animalis

Robust probiotic bacteria with excellent survival characteristics that supports digestive regularity, immune function, and gut health

Scientific nameBifidobacterium animalis FormulaLive bacterial culture Molecular weightN/A - Living organism g/mol CASN/A - Probiotic strain

90 absorption score

10 safety / 10

25 USD per month

6 documented interactions

Check it against something

Evidence level B

Bifidobacterium animalis with:

78 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Improved digestive regularity and bowel movements

Significantly enhances bowel movement frequency and reduces constipation

Stimulates intestinal motility and improves stool consistency Evidence A-grade 1-3 weeks of consistent supplementation

Enhanced gut transit time and digestive efficiency

Optimizes gut transit time and improves overall digestive function

Modulates gut motility and enhances digestive enzyme activity Evidence A-grade 2-6 weeks of regular use

Strengthened immune system function

Enhances immune response and reduces infection susceptibility

Stimulates immune cell activity and produces protective compounds Evidence A-grade 4-12 weeks of consistent use

Improved gut barrier integrity

Strengthens intestinal lining and reduces gut permeability

Produces short-chain fatty acids and reinforces tight junctions Evidence B-grade 3-8 weeks of regular supplementation

Enhanced stress resilience and gut-brain health

May improve stress response and support gut-brain axis communication

Modulates stress hormones and neurotransmitter production Evidence C-grade 6-12 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% 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% Chloride Electrolyte & digestive support 2300mg A 95% Bone Broth Collagen Gut healing & collagen support 20-40g powder B 85%

Every pair we checked

12 combinations scored by the engine

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

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

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

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

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

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

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

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

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

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

Bifidobacterium animalis + Marine Collagen No documented interaction either way No known interaction 70

Bifidobacterium animalis + Magnesium Oxide Synergistic benefits for bowel regularity and digestive comfort Works better together 78

Dosage

With meals daily

Daily1-20 billion CFU

Digestive regularity1-10 billion CFU daily with meals

Constipation management5-20 billion CFU daily

Immune support5-15 billion CFU daily

General gut health1-10 billion CFU daily maintenance

When to expect it

First Effects3-7 days for initial digestive regularity improvements

Peak Benefits2-8 weeks for maximum digestive and immune benefits

Deficiency DevelopmentBeneficial bacteria depleted by poor diet, stress, antibiotics

Toxicity OnsetNo known toxicity - extremely safe probiotic

How to measure it

$200-400

MarkerStool microbiome analysis, digestive function markers, immune markers

OptimalAdequate Bifidobacterium levels, improved digestive markers

Deficient belowLow beneficial bacteria counts, poor digestive function

FrequencyMonitor if using for specific digestive health goals

What people actually reported to the FDA

CAERS, 3 reports naming it as the suspect

Most reported effects

Diabetes mellitus 1

Haemorrhage 1

Blood test abnormal 1

Blood viscosity increased 1

Haematochezia 1

Named as the suspect 3 reports of 3 that mention it at all

Serious outcome 100% hospitalisation, emergency room or worse

Other Serious or Important Medical Event3

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

Dietary Fiber

Enhanced probiotic growth and digestive regularity

Fiber provides nutrients for bacterial growth and improves motility · level A

Magnesium

Synergistic benefits for bowel regularity and digestive comfort

Both support intestinal motility through different pathways · level B

Other Probiotic Strains

Enhanced benefits with multi-strain probiotic formulations

Different strains provide complementary digestive benefits · level A

What not to take with Bifidobacterium animalis

3 documented

Broad Spectrum Antibiotics

Antibiotics eliminate B. animalis and disrupt gut microbiome

Antimicrobial action kills beneficial bacteria · high significance

Low Fiber Diet

Insufficient fiber may reduce probiotic effectiveness

Lack of prebiotic nutrients limits bacterial growth · moderate significance

Chronic Stress

Prolonged stress may impair digestive benefits and colonization

Stress hormones affect gut microbiome and motility · moderate significance

Medication interactions

Discuss these with a pharmacist before combining

antibiotics Moderate

Antibiotics significantly reduce B. animalis viability

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

laxatives Minor

May enhance laxative effects - monitor bowel movements

What to do: Adjust dosing if bowel movements become too frequent

Available forms

bioavailability compared

Bifidobacterium animalis DN-173 010 (Commercial strain) 90

Bifidobacterium animalis DN-173 010 (Commercial strain): Excellent survival, Proven regularity benefits, Commercial availability, Robust strain

Food sources

before you supplement

Commercial probiotic yogurt 10^7-10^9 CFU per serving · 80

Fermented dairy products Variable CFU depending on product · 75

Functional food products 10^6-10^8 CFU per serving · 70

B. animalis probiotic supplements 1-50 billion CFU per serving · 90

Too little

deficiency signs

Gut microbiome imbalance symptoms:
Chronic constipation and irregular bowel movements
Slow gut transit time and digestive inefficiency
Compromised immune function and frequent infections
Poor gut barrier function and increased permeability
Stress-related digestive issues and discomfort
Reduced digestive comfort and bloating

Too much

toxicity signs

Extremely safe with minimal adverse effects:
Temporary digestive adjustment during initial supplementation
Very rare bacterial overgrowth in severely immunocompromised
No documented serious adverse effects in healthy individuals
Safe for daily long-term use

Who benefits most

constipation-digestive-irregularity

Clinically proven to improve bowel regularity and reduce constipation

1-20 billion CFU daily

slow-gut-transit-issues

Optimizes gut transit time and enhances digestive efficiency

5-20 billion CFU daily with meals

immune-system-support

Strengthens immune function and reduces infection risk

5-20 billion CFU daily

general-digestive-health

Supports overall gut health and digestive comfort

1-10 billion CFU daily

stress-related-digestive-issues

May help with stress-related digestive problems through gut-brain axis

5-15 billion CFU daily long-term

Where to buy it

compare forms first

Look for Bifidobacterium animalis at 1-20 billion CFU per serving. The form that matters here is Bifidobacterium animalis DN-173 010 (Commercial strain).

Find on Amazon

Affiliate link — we may earn a commission at no cost to you.

What else affects it

Beyond other supplements

Dietary fiber

Enhanced probiotic growth and digestive regularity

Fiber provides nutrients for bacterial growth and improves motility

Low fiber diet

Insufficient fiber may reduce probiotic effectiveness

Lack of prebiotic nutrients limits bacterial growth

Chronic stress

Prolonged stress may impair digestive benefits and colonization

Stress hormones affect gut microbiome and motility

How it works

Stimulates intestinal peristalsis improving bowel movement frequency
Produces organic acids that enhance gut motility and function
Strengthens gut barrier function through tight junction reinforcement
Stimulates immune cell activation and antibody production
Competes with pathogenic bacteria for nutrients and colonization sites
Modulates gut-brain axis affecting stress response and digestion

Key findings

what the evidence supports

Consistently effective for improving digestive regularity and constipation
Strong evidence for immune system enhancement
Excellent survival characteristics in supplements and functional foods
Safe for long-term daily use with minimal side effects

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 animalis?

Documented effects: Improved digestive regularity and bowel movements; Enhanced gut transit time and digestive efficiency; Strengthened immune system function; Improved gut barrier integrity. Significantly enhances bowel movement frequency and reduces constipation

How much Bifidobacterium animalis should you take per day?

The common daily range is 1-20 billion CFU. By goal — digestive regularity: 1-10 billion CFU daily with meals; constipation management: 5-20 billion CFU daily; immune support: 5-15 billion CFU daily; general gut health: 1-10 billion CFU daily maintenance.

When is the best time to take Bifidobacterium animalis?

With meals daily. First effects are typically reported within 3-7 days for initial digestive regularity improvements.

What are the side effects of Bifidobacterium animalis?

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

What should you not take with Bifidobacterium animalis?

Separate it from Broad Spectrum Antibiotics, Low Fiber Diet, Chronic Stress by two to four hours. Antibiotics eliminate B. animalis and disrupt gut microbiome

Does Bifidobacterium animalis interact with medications?

Documented interactions with antibiotics, laxatives. Discuss these with a pharmacist before combining.

How do you know if you need Bifidobacterium animalis?

The marker is Stool microbiome analysis, digestive function markers, immune markers, optimal range Adequate Bifidobacterium levels, improved digestive markers. Common deficiency signs: Gut microbiome imbalance symptoms:, Chronic constipation and irregular bowel movements, Slow gut transit time and digestive inefficiency, Compromised immune function and frequent infections.

Taken for

59 Immunity

Vitamin D3 · Vitamin C (Ascorbic Acid) · Comprehensive Immune Support Complex

74 Digestion

Lactase · Lactobacillus acidophilus · Protease