When selecting probiotics, focus on four key criteria:

1. Strain Identification — Clearly labeled strain name and number.

2. Viability & Quantity — Recommended daily intake ≥ 100 million CFU.

3. Stability — Proven resistance to stomach acid and bile.

4. Clinical Evidence — Strains supported by published medical research.

💡 Examples:
Bifidobacterium BB-12 and Lactobacillus rhamnosus LGG are both well-supported by clinical studies and suitable for targeted health needs.

👶 Strain Selection Recommendations for Different Groups

Infants

• Prioritize nationally approved strains such as Bifidobacterium animalis BB-12 and Bifidobacterium breve M-16V.

• Preferred forms: Drops or powder.

• Recommended dose: 100 million–10 billion CFU daily.

Adults – Gut Health

• Effective strains: Bifidobacterium triple viable and Clostridium butyricum for diarrhea or constipation.

• Take 2 hours apart from antibiotics.

Immune Support

• Recommended strains: Lactobacillus acidophilus HN019 and Lactobacillus reuteri DSM17938.

• Enhance immunity — ideal for allergy-prone individuals.

💊 Dosage Forms and Usage Notes

• Forms:

  • Capsules — Resist stomach acid but may be harder to swallow.

  • Powder — Easier to take; suitable alternative.

  • Infants — Use drops or freeze-dried powder.

• Timing: Take 30 minutes after meals to reduce stomach acid damage.

• Contraindications:

  • Avoid taking with antibiotics or bismuth preparations.

  • Use with caution in immunocompromised individuals.

🧾 Practical Tips for Product Selection

1. Check Labels — Ensure strain numbers (e.g., Lactobacillus rhamnosus HN019) and CFU counts are clearly stated.

2. Verify Certifications — Choose brands with “Blue Hat” health food certification or clinical validation.

3. Avoid Pitfalls — Steer clear of products with added sugars, flavorings, or dairy residues (especially for allergy-sensitive users).

Note: For detailed guidance on probiotic–antibiotic interactions and purchasing tips, refer to the recommended resources.