Table 3: A meta-analysises that assessed the impact of different probiotics in addition to H. pylori eradication therapy [87].
| Probiotics | Eradication rate | Frequency of side effects |
| Lactobacillus and bifidobacterium [90,91] | Statistically significant increase | Statistically significant reduce |
| Lactoferrin [92,93] | Statistically significant increase | Statistically significant reduce |
| Fermented milk [94] | Statistically significant increase | No data |
| Lactobacillus spp. [95] | Statistically significant increase | Statistically significant reduce |
| Saccharomyces boulardii [86,96] | Statistically significant increase | Statistically significant reduce |