[tomcar288]

Yes, Most people don't know why. But nutritional researchers like Micheal Gregor (he and his team have read over 20,000 research papers! just for one book - how not to die) know why. The problem is all the people who get the most views on youtube, TV and social media are the people who are best at operating businesses and SEO. they often don't know all the research (and even give bad advice sometimes) and hence we get all this back and forth that we see all over the place. Meanwhile, the real researchers who know what they're talking about and are very knowledgable about nutrition and health don't have time for SEO and running a successful media empire. they're content doesn't get viewed very much.