I wouldn't rule it out entirely - a good news article can add context (e.g. via interviews with authors) that is otherwise not generally part of the paper itself
Med school gives you maybe a couple of lectures on nutrition specifically, and it's mentioned as a major risk factor when discussing many diseases. A doctor should be able to tell you the basics, but if you want detailed info you should really be speaking to a registered dietitian instead.
I have received one of these scam messages in the app - they do indeed contain clickable links which go to a replica of the real website, where customers are asked to input credit card details to "confirm their booking". In my case the message promised "your card will not be charged at this time".
I must say it's a clever approach; generally poor English in messages is a red flag for scams, but you tend to forgive that when you know it's coming from a hotel in another country.
Orrrr it could just be that high quality nutritional research is actually incredibly difficult due to the number of variables involved, especially when compared with an easily controlled single intervention study. Not saying there's no money involved, but it's much more complicated than that.