Keto Diet vs. Intermittent Fasting: Reversing Insulin Resistance for Optimal Health

This podcast episode by Dr. Ekberg, a holistic doctor and former Olympian, delves into the mechanisms and benefits of the ketogenic diet and intermittent fasting, primarily as tools to combat insulin resistance. He posits that most modern health problems, including obesity, pre-diabetes, and full-blown diabetes, stem from insulin resistance, which is exacerbated by a diet high in refined carbohydrates and frequent eating. The core argument is that both keto and IF effectively reduce insulin spikes, thereby allowing the body to become fat-adapted and reverse the cycle of constant storage and carbohydrate dependency. Dr. Ekberg explains that the ketogenic diet works by drastically reducing carbohydrate intake, forcing the body to switch from burning glucose to burning fat, producing ketones as a byproduct. This physiological state, measurable through tests, signifies fat adaptation and a reduced need for insulin. Intermittent fasting complements this by extending periods without food, which is an even more potent way to lower insulin levels than carbohydrate restriction alone. He emphasizes that these two approaches are highly synergistic and often yield the best results when combined, as fat adaptation makes fasting much easier and more sustainable. The episode details the detrimental effects of high-carb, frequent meals, which lead to rapid blood sugar spikes and excessive insulin release. Insulin, being a storage hormone, promotes fat accumulation and, over time, causes cells to become resistant to its signals, leading to a vicious cycle of hunger, cravings, and increased storage. In contrast, diets rich in fat and protein result in slower absorption and minimal insulin response, fostering a balance between energy storage and utilization, leading to sustained satiety and fewer cravings. For practical implementation, Dr. Ekberg advocates for a gradual transition to both keto and intermittent fasting to build sustainable habits. He suggests starting by reducing carbs, increasing healthy fats, and eliminating snacks, then progressively extending fasting windows by skipping meals, typically breakfast first. While acknowledging individual variations, he generally recommends the low-carb approach for most people as it facilitates fat adaptation and makes longer fasting periods more manageable, ultimately serving as a powerful strategy to reverse insulin resistance and achieve long-term health and performance.

"most health problems are due to insulin resistance whether it's obesity or pre-diabetes or full-blown diabetes insulin is the central component and insulin resistance is the result of getting this system out of balance"

"the only way to get the body to start using that fat again is to reduce the carbs so much that the body really has no choice and then as the body learns to burn fat you become fat adapted"

"cutting carbs low enough to produce ketones is called a ketogenic diet and it's a measurable physiological state"

"the only thing that cuts carbohydrates more than the ketogenic diet is fasting meaning you don't eat at all for a period of time so these two concepts really go hand-in-hand and it's a very good idea to use the two together"

"fast absorption causes high insulin spikes and insulin is a storage hormone it's an anabolic hormone"

"every time you eat anything it's to some degree a mess to trigger insulin and to increase storage and if you do that six times a day you're telling the body to store fat six times a day"

"we're not designed we're not required to eat three to six times a day that's a modern idea based on carbohydrate dependency"

"the worst of course is as always the official guidelines to eat high carb to eat bread and pasta and whole grains and to eat six times a day that is a terrible idea if you are insulin resistant"