Googled it and:
Gut microbiota: PAs can improve the diversity of gut microbes, and can increase the abundance of beneficial bacteria while decreasing the abundance of harmful bacteria.
Fecal odor: PAs can reduce the level of putrefactive substances in the feces, which can reduce fecal odor.
Fecal pH: PAs can decrease fecal pH.
Antimicrobial activity: PAs can have an antimicrobial effect on potentially pathogenic bacteria.
Prebiotic effect: PAs can have a prebiotic effect on beneficial bacteria.
Looks like I’m buying some seeded grapes for science!
NegativeInf@lemmy.world 6 months ago
Because you can study not just the effects of the supplement, but also what kind of microbes are contributing to the types of odors. This study actually seems relatively decent I think.