@siracusa but why does it end there? You’re deciding whether to believe the Google snippet is really on the NIH website. Why do you think it's accurate just because it’s published on the NIH website, you haven’t looked at the spreadsheet they loaded the results. Maybe they made a math mistake. And that’s only one study. You really want a literature review or meta analysis. No such analysis exists, but a search results screenshot can fit a bunch of snippets from multiple sources all next to each other. Maybe screenshot of a bunch of snippets is as good as it gets for an answer to this question in the short form post format. And an LLM summary of the literature might be nearly as good (I’m so sorry to be pedantic, but I actually didn’t realize this was my opinion going in. I appreciate the chance to figure this out through discussion)