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It is one thing to survive, and quite another to prosper physically and mentally. We can survive for years on bread alone, but our mood, health, and productivity will certainly be far from optimal. This scenario is a survival feeding end; Without going to that extreme, we could say that something similar happens to the standard western diet.
Drastically reducing sugar and processed food intake, limiting carbohydrate amounts, and returning to eating more healthy fats, as we did in the past, puts us on track for optimal physical and emotional health.
What is ketosis and what is the ketogenic diet?
The cells of the human body require a constant flow of energy to maintain their activity and stay alive. The first source they use is glucose that is in the blood, muscles, liver and other tissues. In a very simplistic way, you could say that the body understands that fats are stores, so it is not going to use them for fuel until it has first used up all the available glucose.
The problem is that these fat molecules, as they are stored, are too large to enter the cellular machinery responsible for producing energy. So when we stop eating, fast, and run out of available glucose, the body breaks these fatty acids down into smaller, energy-generating molecules called ketone bodies.
Through a specific proportion of the three macronutrients (fats, carbohydrates and proteins), the ketogenic diet replicates what happens in our body when we fast: it is a diet high in fat and low in carbohydrates that puts our metabolism on in a super state of burning fat, a fuel that we now know to be a tremendously efficient source of energy.