> Frankly, the number of carbs and fiber you need throughout your life is 0
Sincerely, what are you talking about? It's been well-known a diet high in fiber lowers your risk of cardiovascular and metabolic diseases.
Also, no carb diets are largely bullshit. There's plenty of complex carbs with many nutrients. The problem is while "no carb" might be somewhat effective, it's not sustainable for the vast majority of people. That, to me, makes it very close to worthless.
Sure, but this is worthless information. Many processes of your body will be enhanced by carbohydrates and fiber. Not having fiber in your diet will greatly increase your risk of heart attack, stroke, various GI cancers, and diabetes.
For most of humanity, humans ate 100+ grams of fiber a day and had a diet almost entirely composed of carbohydrates. Access to farmed meats is a very new phenomenon. I think this is the part people are missing - they believe paleolithic humans ate mostly meat. They didn't. They ate mostly carbs. Also, the meats they did have had very little saturated fats because they were game meat, not farm meat.
A burger isn't really the same thing as a wild antelope.
Frankly, the number of carbs and fiber you need throughout your life is 0.