It was citing an abstract originally published at "Human Biology." Oh, wait, I already know your stock answer to that: "'Human Biology' is not how you prove something to be true or false."
See how that works for Mr. ReasonIsGone. No matter what evidence you present to him, he just inserts your source into his stock answer: "(Source cited) is not how you prove something to be true or false."
The upside for Mr. ReasonIsGone is he doesn't have to think and his absurd obsessions are safe from challenge.
Do you know the global percentage of published studies that are either flawed or outright false?