Dietary Supplements

Investigating the Effect of Synbiotic and SperiGen Supplementations on Spermatogram in Idiopathic Oligoasthenoteratozoospermia: A Double-Blinded Randomized Clinical Trial.

TL;DR

The combination of Synbiotic and SperiGen appears to be much more effective than using an antioxidant alone in improving DNA fragmentation, concentration, and progressive motility of sperm in idiopathic oligoasthenoteratozoospermia.

Key Findings

Combination of Synbiotic and SperiGen significantly increased average change in sperm progressive motility compared to SperiGen and placebo.

  • p = 0.001 for between-group comparison of progressive motility change
  • 73 patients with idiopathic oligoasthenoteratozoospermia (iOAT) were randomized into two groups
  • Treatment duration was 3 months
  • One group received SperiGen plus placebo; the other received SperiGen plus 500 mg Synbiotic (FamiLact) daily

Combination of Synbiotic and SperiGen significantly improved DNA fragmentation compared to SperiGen and placebo.

  • p = 0.001 for between-group comparison of DNA fragmentation change
  • DNA fragmentation is associated with ROS-induced damage to sperm DNA
  • Both groups received SperiGen as an antioxidant agent throughout the trial

Combination of Synbiotic and SperiGen significantly reduced levels of non-motile sperm compared to SperiGen and placebo.

  • p = 0.018 for between-group comparison of non-motile sperm levels
  • This was one of three semen parameters that showed significant between-group differences

Within-group analysis showed that all semen parameters were significantly improved in both treatment groups, with one exception.

  • The exception was non-progressive motility in the SperiGen and placebo group, which did not reach significance
  • Within-group improvements were observed in both the Synbiotic plus SperiGen group and the SperiGen plus placebo group
  • Parameters assessed included sperm concentration, progressive motility, non-progressive motility, non-motile sperm, and DNA fragmentation

The trial was a double-blind randomized clinical trial conducted on infertile males with idiopathic oligoasthenoteratozoospermia (iOAT).

  • 73 patients with iOAT were blindly randomized into two groups
  • One group received SperiGen plus placebo; the other received SperiGen plus 500 mg Synbiotic (FamiLact) daily
  • Semen parameters were measured before and after the 3-month intervention
  • Registered as IRCT20190810044500N6, registration date 2020-09-05

Antioxidants are proposed to scavenge reactive oxygen species (ROS) that reduce sperm motility, cause DNA damage, and lead to apoptosis in sperm cells.

  • Male infertility is influenced by quantitative and qualitative impairments in spermatogenesis
  • SperiGen is described as a multivitamin-mineral supplement for men helping to improve male fertility used as an antioxidant agent
  • Synbiotic (FamiLact) was administered at 500 mg daily as the probiotic/prebiotic component

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Citation

Zarehoroki A, Vahidi S, Sahebnasagh A, Shahsavan R, Nabi A, Meybodi M, et al.. (2026). Investigating the Effect of Synbiotic and SperiGen Supplementations on Spermatogram in Idiopathic Oligoasthenoteratozoospermia: A Double-Blinded Randomized Clinical Trial.. International journal of urology : official journal of the Japanese Urological Association. https://doi.org/10.1111/iju.70255