Sure, this one probably comes closest to what you’re looking for. Looks like modest benefit. Nothing super effective but enough to make a positive difference generally. I definitely recognize that they can have side effects, so decisions should be personalized.
https://onlinelibrary.wiley.com/doi/10.1111/acps.13541
There are some other older ones done before 2022 as well like this one.
At least in the first study, they did an analysis of the non-pharm funded studies and saw some good results. Unfortunately that’s pretty much the best we can go off of.