The 2019 LW post discusses a podcast which talks a lot about gears-y models and proposed mechanisms; as I understand it, the high level “zinc ions inhibit viral replication” model is fairly well accepted, but some of the details around which brands are best aren’t as well-attested elsewhere in the literature. For instance, many of these studies don’t use zinc acetate, which this podcast would suggest is best. (To its credit, the 2013 meta-analysis does find that acetate is (nonsignificantly) better than gluconate, though not radically so.)
The 2019 LW post discusses a podcast which talks a lot about gears-y models and proposed mechanisms; as I understand it, the high level “zinc ions inhibit viral replication” model is fairly well accepted, but some of the details around which brands are best aren’t as well-attested elsewhere in the literature. For instance, many of these studies don’t use zinc acetate, which this podcast would suggest is best. (To its credit, the 2013 meta-analysis does find that acetate is (nonsignificantly) better than gluconate, though not radically so.)