I eat carbs
Or the fact that Japan and Italy are amongst the world's highest life expectancy's
Most people need 0.3-0.6 grams of protein per kg of body weight, although this figure is usually bumped to 0.8 for general guidelines (to make sure everyone gets an adequate amount). In many fitness circles you see figures like 2 grams per kilogram, which is ridiculously high. Now you might not think this is a problem, but if you eat more protein than is required the rest is turned into glycogen (this process is called gluconeogenesis). Not only that, but the process is so inflammatory it increases mortality more than diets high in the other macros, so you really shouldn't eat too much protein unless you have a good reason to.
sciencedirect.com
Ketogenic diet claims it is "adequate protein" but most people on keto actually eats ridiculously high amounts of protein simply because ketogenic food is meat and cheese, both high in protein. The rest of them avoid this problem by eating oils, butter and lard. This is also retarded because there's no nutrition in these foods.
Did I say obesity was a bigger problem in the 50s? No, it is now. To be honest it has nothing to do with carbs or fats, it's to do with processed food being cheap, tasty, and abundant.
The argument is that when the US government subsides the agriculture industry they change medical school curriculums to say that carb-heavy diets are good. When people realised this they got pissed off and developed hatred towards carbs.
Obviously there's a middleground but people like to get their pitchforks out and blame their problems on other people
Why did obesity start going up the very specific year the government came out with guidelines telling people to eat like this?
Very naive view of the obesity epidemic. Many other countries issued the same guidelines, yet they don't suffer from the same problems.
Essentially there's only one reason to avoid carbs and that's if you are prediabetic, have diabetes or have a family history of diabetes. In all instances a low carb (not keto) diet, is sufficient to reduce blood sugar levels and nearly eliminate symptoms.
Because of socio economic changes. Correlation is not causation.
Or if you have epilepsy.
Show me. I bet those other country's didn't have anywhere near the money on the line be it through lobbying, subsidies, what have you to push it near as much
So none of that existed literally at all in 1979 but suddenly become a massive issue in 1980?