The Ketogenic diet as we know it today was coined in 1923 by Dr. Russel Wilder at the Mayo Clinic for Epilepsy. His diet is now known as the classical ketogenic diet and it comprised of 90% calories from fat, 6% from protein, and <4% from carbs. This was proven to be effective in reducing and reversing epilepsy. Notice I didn’t mention anything about weight loss. The ketogenic diet was NOT designed for weight loss. It was designed because it mimicked the benefits of fasting in patients by utilizing ketones and fatty acids as a fuel source instead of glucose. These ketones were shown to have anti-inflammatory properties in the brain and were neuroprotective (this is a simplification.) This happens when the human body enters a state of ketosis (liver producing ketones)
Fast forward to 2019 and you see the word “keto” everywhere relating to weight loss. Weight loss is a side effect of the ketogenic diet and specifically fat loss. As I discussed in my last blog post, the ketogenic diet has shown to protect muscle mass while reducing body fat. No wonder everyone is attracted to this way of eating that doesn’t cost anything. You don’t even NEED to exercise to lose the fat! You don’t need supplements, a personal trainer, Jenny Craig, Weight watchers, or even Julian Michaels!
The question is, how is this possible? It’s possible by switching over your bodies preferred fuel source from glucose to ketones and fatty acids. This only happens when we abstain from carbohydrates for a period of time and feed our bodies an alternate fuel source (fat.) This is called “Fat adaption.” Your body begins to prefer fat as a fuel source so when it needs energy it gets it from fat (dietary and body fat.) This process is actually more about elimination than it is addition, meaning the elimination of carbs is MORE important than the addition of fat. Eating more fat will help with energy levels and overall feel better and will help to speed up the actual fat adaptation process. This process usually takes anywhere from 2-6 weeks.
A certain macronutrient range has been found to speed up the process if maintained daily for most people. Everyone is different but the basics are this…
75% calories from Fat
20% from protein
5% from Carbs or less.
This macronutrient profile is much more sustainable than the classical ketogenic diet while providing the same benefits for non-medical reasons. In fact it prevents side effects from a low protein diet which occur on the CKD.
Lets look at an example of what a day of eating looks like with this macronutrient profile. Note, this is not taking to account intermittent fasting or special diets like vegetarian or carnivore, just a diet that includes a bit from each area that I see most commonly eaten.
For breakfast we have two eggs, 3 pieces of bacon and coffee with MCT oil and heavy cream. This is almost zero carb. The only tiny amount of carbs are from eggs! Also high fat with the MCT oil and heavy cream. Some nice fat and protein added with eggs and bacon.