As obesity skyrockets, Dietary Guidelines go from pro-vegetable to anti-meat

Yes, I think we can. Fifty years of the guidelines, even if not always followed, form the cultural and psychological and healthcare baseline for healthy eating. And they're completely wrong – that's the author's well-documented claim, and I believe it.

E.g. look at all the fruit juice and sweet cereals and "low-fat" items on any supermarket shelf. Sells $$$billions each year - I just checked. Low-fat is very unhealthy compared to full-fat, and in the current obesity and diabetes epidemic, fruit juice and sugary cereals are just plain poison.

Unfortunately the full title is way over the HN character limit.

Its fairly well known how these things generally happen in a bureaucracy.

One word, corruption.

Its been known that starting in 1976 PFAS were first found in human blood, and it was rediscovered a second time in the 1990s (at 3M).

Obesity has increased dramatically starting in that same time frame. No mention of PFAS causing toxicological issues related to obesity, or inflammation, and when you ask the wrong questions (is it diet, or is it toxic exposure), and doctors aren't testing for the latter, of course there is going to be a quagmire of bad data in the catchall statistics.