[caveat emptor]

Some interesting reading:

Not the first one, anyway, and not what my comment to Alter Kater asked for in any event.

But the authors caution that the results may not apply to the population at large because the high-dose trials were small and their participants tended to have chronic health problems such as heart disease.

Indicates maybe "more studies needed" or "seminar in study design needed". As well, doses were not that high, at least according to "US dietary guidelines" mentioned in the article.

Thanks for the effort. I'll try at least one more later when I have some time.

[caveat emptor]

You linked to six commentaries. You seem not to have read them, or you would have noticed that there were duplicates - not commentaries but the underlying studies. After removing duplicates there were only three.

I made a few notes, but not having read them, my comments wouldn't make much sense to you. Thanks anyway.

You may want to check to see if I made a mistake, or maybe you did read them, and I've made several mistakes. If so I apologize. Let me know if I did.

CE