Joe Rogan was also very vocal about the moon landings being fake and then Neil DeGrasse Tyson got in his booty and he ended up doing a 180, so who knows about Joe. A lot of people are having health issues and it is linked to diet. Basically, studies are done on things, like saccharrin, and some scientists will find its bad and post a report. The big industry gets their people (all with credentials of course) to dispute it. Its all bullshit and anyone with walking around sense can see that big industries will put out bad products to make money and they lobby and do whatever to keep making the money. Its up to the individual to handle their own health if they choose to. I started having gut problems and long story short, I narrowed it down to mainly items that are GMO. GMO crops are engineered to accept glyphosate and not die, so crops like wheat, corn and rice are pretty much ALL GMO now and they absorb glyphosate and pass it to us. We eat wheat containing glyphosate and end up with problems and doctors will say we are "gluten intolerant" because they are either taught that and parrot it with no real knowledge, or they are afraid to go against the manufacturer of glyphosate, Monsanto. There may be some people who are intolerant to gluten, but if a person eats GMO wheat in the USA and has problems and then later eats non-GMO wheat in another country with no problems, I would say its not the gluten. By doing keto, I "cleaned up" my body and feel great. I can now introduce one particular item at a time and see what happens. I feel great on keto and then eat rice and my gut hurts. Now I know rice is off the table, etc. So, yes, I'm sure there are problems with EVERY "diet" out there, so like I said, we need to just handle things our self and figure things out the best we can. Look at the cell phone industry. Studies show that holding a phone up to your head causes cancer from the microwave radiation, but that info gets debunked or silenced. Most people aren't giving up their comforts no matter what report comes out, anyway.