I have about 10 years experience as a food specialist and about 3 years experience as a marketeer in the food scape.
(Yes I also have my own website where I claim that I know everything: www.vakervegan.nu )
So when you read the studies and have regular contact with dietitians and other specialist, there really arent that much contradictions or controversies, as a science we know a lot, pretty sure, and we know what we don't know, there isn't a lot of discussion there.
When we're talking about marketing though, there is A LOT of discussion!
You see these discussions in the supermarket, on labels: NO SUGAR! LOW FAT! 100% NATURAL! VEGAN! etc...
And we see these discussions online, on websites, forums, social media, in your e-mail inbox, etc.
But what people really do not seem to understand is that companies (influencers, doctors, food and beverage companies, etc) thrive through people not knowing or understanding. There are so many 'experts' that have the 'secret' to health / losing weight / whatever, which makes sense from a marketing frame of refrence. But this has nothing to do with science. Marketing uses science to create an appealing story and the more contraverse there is, the higher the chance you will get know for this point of view.
So if I need to give you advice, is always (always always always) ask yourself, is this person (company) in any way selling something (views on youtube are also indirect sales), and is this person in any way profiting from this claim. It does not mean that there is no worth in what they say when they sell something, but you definitely should reconsider their opinon, especially when it seems contridictive or a controversy.
