Over a third of Americans are currently obese . Beyond simply being a public health crisis, widespread obesity—by virtue of comorbidities such as heart disease and diabetes— is a massive burden to our healthcare system. Public discourse on the issue ranges from "it's all genetic" to "fat people are just lazy," with health experts staking their claims against either fats or carbs. The truth is that once you have eliminated refined, processed foods—both low-carb and low-fat diets spontaneously reduce hunger and result in equal amounts of weight loss . And obesity isn't the result of laziness, it's a consequence of ordinary living in an unordinary EEA—the modern landscape of food. If every single financial transaction you made occurred inside the environment of a casino, chances are that you'd end up broke. Of course, not every single individual would end up that way, but that doesn't take away from the fact that the house always wins. You can learn how to count cards in blackjack or increase your poker-playing skills, but the best option for most people is to just leave the environment of the casino.
The problem isn't carbs or fat, it's carbs and fat together. In the last 200,000 years, there has never been a time where foods have contained high proportions of both of these macronutrients. For the most part, fruits are composed of carbohydrates, vegetables are composed of carbohydrates and protein, and meat/nuts are composed of protein and fat. Breast milk is a rare example of a food that contains both macronutrients in relatively equal proportions, with roughly 3.5% of energy coming from fats, and 7% coming from carbs. The carbohydrate and fat ratios of modern, refined foods are 7-8 times higher. If we want to be lean and healthy, we need to step away from the environment of modern food choices.