Culturelle is a top-tier choice if you’re looking for the best probiotic to stop diarrhea. It features the most studied bacterial strain for IBS, Lactobacillus rhamnosus GG, making it an excellent and affordable option for improving diarrhea, pain, and bloating.

• Most Studied Strain for Diarrhea: Contains 100% Lactobacillus rhamnosus GG.
• Proven Efficacy: Clinically shown to improve IBS-D symptoms.
• High CFU Count: Delivers 10 billion CFUs designed to survive stomach acid.
• Allergen-Free: Free from gluten, dairy, and soy.

Price: Varies, typically budget-friendly.

If you’re on a budget and struggle with IBS with constipation, Align is a fantastic choice. It contains the unique, patented strain Bifidobacterium infantis 35624, which is clinically shown to provide relief from abdominal pain, bloating, and constipation. Learn more in our Align Probiotic review.

• Patented Strain for Constipation: Uses Bifidobacterium infantis 35624 for targeted relief.
• Clinically Proven: Backed by studies for improving a range of IBS-C symptoms.
• Convenient: Simple once-daily dose in a capsule form.
• Accessible in Canada: Widely available and affordable.

Price: Varies, typically budget-friendly.

YourBiology is specifically formulated for women’s health needs, combining beneficial strains like L. plantarum and L. paracasei with prebiotics. Users report improvements in digestion, reduced bloating, and successful weight management.

• Tailored for Women: Focuses on specific female gut health needs.
• Aids Weight Loss: Contains strains shown to help reduce hunger and shed fat.
• Reduces Bloating: Effective in easing common IBS symptoms like gas and bloating.
• High Quality: Made in a certified facility for potency and quality.

Price: Approx. $88 CAD (Deals on bulk orders)

Ritual offers a unique 3-in-1 formula with prebiotics, probiotics, and a postbiotic to provide comprehensive gut support. Its delayed-release capsule and clinically-studied strains make it a top choice for managing diarrhea and bloating. See how it compares in our Seed vs Ritual review.

• 3-in-1 Formula: Combines prebiotics, probiotics, and a postbiotic.
• Targeted Strains: Uses L. rhamnosus and B. animalis, two of the most studied strains.
• Delayed-Release Capsule: Ensures probiotics reach the colon where they are most effective.
• Third-Party Tested: Verified for potency and shelf stability.

Price: Approx. $76 CAD

If you’re sensitive to typical probiotics, a soil-based option like Just Thrive is an excellent choice. Its spore-based strains are designed to survive the stomach’s harsh environment, arriving 100% alive in the intestines to support gut and immune health, and are particularly good for gas and bloating. Check out our Just Thrive review for more.

• Spore-Based Strains: Highly resilient strains for maximum survivability.
• Gentle on the Stomach: Less likely to cause gas or bloating.
• Immune Support: Boosts immune function and produces antioxidants in the gut.
• Clinically Studied: Strains are proven to address leaky gut and rebalance the gut microbiome.

Price: Approx. $61 CAD (Use code “SYNCTHERAPY” for 15% off)

Viome takes the guesswork out of probiotics. They offer an at-home gut health test that analyzes your unique microbiome and then creates a personalized blend of probiotics and prebiotics to target your specific needs, including the gut-brain axis for IBS and anxiety. Learn more from our Viome review.

• Truly Personalized: Formula is based on your individual gut microbiome analysis.
• Data-Driven: Provides insights into your gut health and personalized food recommendations.
• Comprehensive: Addresses the root cause of symptoms by targeting specific microbial imbalances.
• Clinically Studied: Viome recommendations have been shown to help relieve IBS symptoms.

Price: Starts at approx. $95 CAD/month (Use code “SYNC15” for 15% off)

This is a high-potency, medical-grade probiotic often used clinically by doctors for severe IBS symptoms. While expensive, its blend of eight live bacterial strains is one of the most potent and well-researched formulas available for both IBS-D and IBS-C.

• Medical-Grade Potency: Contains a high concentration of live bacteria for maximum impact.
• Clinically Proven: Extensively studied for use in various gastrointestinal conditions.
• Doctor Recommended: A trusted choice in clinical settings for managing severe symptoms.
• Effective Relief: If other probiotics haven’t worked, this is the next step.

Price: Varies, typically a premium option.

This premium formula contains 19 of the best probiotic strains available, but it comes at a price. It’s designed to help balance the gut microbiome, boost energy, lower stress, and significantly reduce IBS symptoms. See our Cymbiotika vs Seed comparison for more details.

• Advanced Formula: Contains 19 probiotic strains plus prebiotics and herbal blends.
• Holistic Benefits: Aims to lower stress and boost energy alongside digestive relief.
• High-Quality Ingredients: Free of soy, gluten, and sugar.
• Potent Relief: A top-tier option for those seeking maximum impact.

Price: Approx. $142 CAD (Use code “SYNCTHERAPY” for 15% off)

Megasporebiotic is another clinician-grade, spore-based probiotic that has shown amazing results with clients. It’s particularly effective for those with IBS who also experience low energy and brain fog, as it helps reduce symptoms of “leaky gut”. Read our Megasporebiotic review to learn more.

• Spore-Based Formula: Contains five Bacillus species for robust gut barrier function.
• Clinician Grade: A powerful formula often recommended by practitioners.
• Reduces Leaky Gut: Shown to reduce symptoms indicative of leaky gut syndrome.
• Improves Microbial Diversity: Helps promote a healthier, more diverse gut flora.

Price: Approx. $87 CAD

Floramend is a decent probiotic that can help with occasional gas and bloating. It contains a blend of six probiotic strains, including Lactobacillus acidophilus and Bifidobacterium bifidum, to support digestive health.

• Multi-Strain Blend: Contains six different probiotic strains.
• High Potency: Delivers 20 billion CFUs per capsule.
• Allergen-Free: Free from gluten, dairy, and soy.
• Stable Formula: Does not require refrigeration.

Price: Varies.