What are the side effects of taking probiotics?

Common side effects of probiotics include mild digestive discomfort, such as gas, bloating, or diarrhea, especially when first starting. These symptoms usually subside as your body adjusts. However, people with weakened immune systems or serious illnesses should consult a doctor before use, as probiotics may pose risks in rare cases.

How long does it take for probiotics to work?

Probiotics can start working within a few days to a few weeks, depending on the individual and the specific health concern. For digestive issues like bloating or irregularity, improvements may be noticed sooner, while immune or long-term gut health benefits may take several weeks of consistent use.

Can I take probiotics with antibiotics?

Yes, taking probiotics during antibiotic treatment can help maintain gut flora and reduce antibiotic-related diarrhea. However, space them at least 2 hours apart to prevent the antibiotic from killing the beneficial bacteria. Look for strains like Saccharomyces boulardii or Lactobacillus rhamnosus GG, which are well-studied for this purpose.

What’s the best probiotic for bloating and gas?

For bloating and gas, probiotics containing Bifidobacterium lactis, Lactobacillus acidophilus, or Lactobacillus plantarum are often recommended. These strains help balance gut bacteria and improve digestion. Pairing probiotics with fiber-rich foods and staying hydrated can enhance their effectiveness.

Do probiotics help with weight loss?

Some studies suggest certain probiotic strains, like Lactobacillus gasseri or Lactobacillus rhamnosus, may support weight management by influencing gut bacteria linked to metabolism. However, probiotics alone are not a magic solution—they should be combined with a healthy diet and exercise for best results.

Are probiotics safe for kids?

Probiotics are generally safe for children, especially strains like Bifidobacterium infantis or Lactobacillus reuteri, which are commonly found in kids' formulas. Always choose a product specifically designed for children and consult a pediatrician, particularly for infants or kids with underlying health conditions.

Supplement guide Probiotics

Probiotics

Probiotics are live bacteria that support gut health and digestion. They help maintain a healthy digestive system and may boost immune function.

At a glance

Snapshot

Primary goal: Gut health
Dosage range: 1-10 billion CFU daily
Best time to take: With meals
Time to effect: 1-4 weeks
Common stacks: Prebiotics, Digestive enzymes
Intake notes: Store in a cool, dry place; avoid high heat

Ranked picks

Top 3 Best Probiotics Supplements

#1 NootroScore9.0

Nature's Bounty

Nature's Bounty Acidophilus Probiotic, Daily Probiotic Supplement, Digestive Health, 200 Tablets, Twin Pack

TabletTwin Pack

Quantity: 200 count
Potency: N/A

$15.34$0.08/count

View product

#2 NootroScore8.9

Trunature

Trunature Advanced Digestive Probiotic, White, 100 Count

Capsule

Quantity: 100 count
Potency: N/A

$17.49$0.17/count

View product

#3 NootroScore8.5

Generic

300 Billion CFUs Probiotics for Women & Men - 12 Strains + 3 Organic Prebiotics, Probiotics for Digestive Health & Immune, Gut Health & Bloating, Gut Health for Women & Men - 60 Capsules

Capsule12 Strains3 Organic Prebiotics

Quantity: 60 count
Potency: 300 Billion CFUs

$21.99$0.37/count

View product

Top 10 Probiotics Supplements

Nature's Bounty

Nature's Bounty Acidophilus Probiotic, Daily Probiotic Supplement, Digestive Health, 200 Tablets, Twin Pack

TabletTwin Pack

Quantity: 200 count
Potency: N/A
NootroScore: 9.0
Price: $15.34$0.08/count

Buy

Trunature

Trunature Advanced Digestive Probiotic, White, 100 Count

Capsule

Quantity: 100 count
Potency: N/A
NootroScore: 8.9
Price: $17.49$0.17/count

Buy

Generic

300 Billion CFUs Probiotics for Women & Men - 12 Strains + 3 Organic Prebiotics, Probiotics for Digestive Health & Immune, Gut Health & Bloating, Gut Health for Women & Men - 60 Capsules

Capsule12 Strains3 Organic Prebiotics

Quantity: 60 count
Potency: 300 Billion CFUs
NootroScore: 8.5
Price: $21.99$0.37/count

Buy

Generic

Probiotic 300 Billion CFU - 12 Strains with Organic Prebiotics for Digestive & Gut, Immune, Bloating Health - Probiotics for Women and Men - Daily Dairy Free, Shelf Stable - 60 Counts

Capsule12 StrainsOrganic Prebiotics

Quantity: 60 count
Potency: 300 Billion CFU
NootroScore: 8.5
Price: $21.90$0.37/count

Buy

Physician's CHOICE

Physician's CHOICE Probiotics for Women - PH Balance, Digestive, UT, & Feminine Health - 50 Billion CFU - 6 Unique Strains for Her - Organic Prebiotics, Cranberry Extract+ - Women Probiotic - 30 CT

CapsulePH BalanceDigestive

Quantity: 30 count
Potency: 50 Billion CFU
NootroScore: 8.3
Price: $23.97$0.80/count

Buy

Culturelle

Culturelle 4-in-1 Probiotics for Women, Daily Probiotic & Prebiotic Supplement to Support Vaginal Health, Digestive Health, Immune Health, Occasional Diarrhea, Gas & Bloating Relief, Non-GMO, 30 Count

CapsuleNon-GMO

Quantity: 30 count
Potency: N/A
NootroScore: 8.0
Price: $27.27$0.91/count

Buy

Culturelle

Culturelle Pro Strength Daily Probiotics For Digestive Health (2 Month Supply) with Prebiotics for Women & Men, Supports Occasional Diarrhea, Gas & Bloating, Gluten & Soy Free, 60 Count

CapsuleGluten FreeSoy Free

Quantity: 60 count
Potency: N/A
NootroScore: 7.6
Price: $30.99$0.52/count

Buy

Garden of Life

Garden of Life Once Daily Dr. Formulated Probiotics for Women 50 Billion CFU 16 Probiotic Strains with Organic Prebiotics for Digestive, Vaginal & Immune Health, Dairy Free, Shelf Stable 30 Capsules

CapsuleDr. Formulated16 Probiotic Strains

Quantity: 30 count
Potency: 50 Billion CFU
NootroScore: 7.6
Price: $31.55$1.05/count

Buy

Renew Life

Renew Life Women's Probiotic Capsules, Supports pH Balance for Women, Vaginal, Urinary, Digestive and Immune Health, L. Rhamnosus GG, Dairy, Soy and Gluten-Free, 25 Billion CFU - 60 Ct

CapsuleDairy-FreeSoy-Free

Quantity: 60 count
Potency: 25 Billion CFU
NootroScore: 7.3
Price: $34.79$0.58/count

Buy

#10

NOW Foods

NOW Foods Supplements, Probiotic-10™, 100 Billion, with 10 Probiotic Strains,Dairy, Soy and Gluten Free, Strain Verified, 60 Veg Capsules

CapsuleDairy FreeSoy Free

Quantity: 60 count
Potency: 100 Billion
NootroScore: 7.1
Price: $36.85$0.61/count

Buy

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Use and selection

Buying Guide

Everything you need to know to make an informed decision about Probiotics

Why It Matters

Probiotics are essential for maintaining a healthy gut microbiome, which is crucial for proper digestion, nutrient absorption, and immune system function. They help balance beneficial bacteria in the gut, potentially reducing digestive issues like bloating, constipation, and diarrhea while supporting overall wellness.

How Probiotics Helps You

Digestive Health

Probiotics restore beneficial gut bacteria, improving digestion, reducing bloating, and supporting nutrient absorption for better gut function.

Immune Support

By balancing gut microbiota, probiotics strengthen the immune system, helping the body defend against infections and illnesses more effectively.

Gut Health

Probiotics maintain a healthy gut microbiome, reducing digestive discomfort, promoting regularity, and supporting overall intestinal balance.

Mood Support

Probiotics influence the gut-brain axis, helping regulate serotonin production and reducing symptoms of stress and anxiety for better mental well-being.

Frequently Asked Questions

Common questions about Probiotics answered by our experts

What are the side effects of taking probiotics?: Common side effects of probiotics include mild digestive discomfort, such as gas, bloating, or diarrhea, especially when first starting. These symptoms usually subside as your body adjusts. However, people with weakened immune systems or serious illnesses should consult a doctor before use, as probiotics may pose risks in rare cases.
How long does it take for probiotics to work?: Probiotics can start working within a few days to a few weeks, depending on the individual and the specific health concern. For digestive issues like bloating or irregularity, improvements may be noticed sooner, while immune or long-term gut health benefits may take several weeks of consistent use.
Can I take probiotics with antibiotics?: Yes, taking probiotics during antibiotic treatment can help maintain gut flora and reduce antibiotic-related diarrhea. However, space them at least 2 hours apart to prevent the antibiotic from killing the beneficial bacteria. Look for strains like Saccharomyces boulardii or Lactobacillus rhamnosus GG, which are well-studied for this purpose.
What’s the best probiotic for bloating and gas?: For bloating and gas, probiotics containing Bifidobacterium lactis, Lactobacillus acidophilus, or Lactobacillus plantarum are often recommended. These strains help balance gut bacteria and improve digestion. Pairing probiotics with fiber-rich foods and staying hydrated can enhance their effectiveness.
Do probiotics help with weight loss?: Some studies suggest certain probiotic strains, like Lactobacillus gasseri or Lactobacillus rhamnosus, may support weight management by influencing gut bacteria linked to metabolism. However, probiotics alone are not a magic solution—they should be combined with a healthy diet and exercise for best results.
Are probiotics safe for kids?: Probiotics are generally safe for children, especially strains like Bifidobacterium infantis or Lactobacillus reuteri, which are commonly found in kids' formulas. Always choose a product specifically designed for children and consult a pediatrician, particularly for infants or kids with underlying health conditions.