| Probiotic strain | Recommended daily dosage | Preparations* |
|---|---|---|
| Lactobacillus rhamnosus GG | 10 billion CFUs | Capsules (Culturelle) |
| Therapeutic yogurts and fermented milks | ||
| Lactobacillus sp./Bifidobacterium sp.† | 100 million to 35 billion CFUs, depending on preparation | Capsules (Align, Primadophilus) |
| Powder (Primal Defense) | ||
| Capsules or powder (Fem-Dophilus, Jarro-Dophilus) | ||
| Therapeutic yogurts and fermented milks (Activia, Danactive, Yo-Plus) | ||
| Saccharomyces boulardii | 250 mg to 500 mg | Capsules (Florastor) |