Effect of fermented milk on upper respiratory tract infection in adults who lived in the haze area of Northern China: a randomized clinical trial.
- 2021-01
- RCT · n = 136
- Pharmaceutical biology 59(1)
- Hong Zhang
- Junli Miao
- Miya Su
- Bryan Y Liu
- Zhenmin Liu
- PubMed: 34062085
- DOI: 10.1080/13880209.2021.1929344
- High evidence
- Large Human Trial
- Clinical
the post-intervention levels of interferon-γ (139.49 ± 59.49 vs. 113.45 ± 65.12 pg/mL) and secretory immunoglobulin A (529.19 ± 91.70 vs. 388.88 ± 53.83 mg/dL) significantly increased in the Qingrun group, compared with those in the control group.
- Effect
- Beneficial
- Effect size
- Small
- Significant
- Yes
- Dose
- 250 g/day (Qingrun yogurt containing the probiotic)