You've probably heard a lot about fasting "lately" but rather than being the latest dietary trend, people have been fasting since the beginning of time (whether they wanted to or not).
Some people fast for mental clarity. Others fast to improve their health and get off certain medications, like in the case of DIABETES and HYPERTENSION. Others simply fast for weight loss and maintenance. Lastly, a large part of the population fasts for religious/cultural reasons.
How does Fasting relate to LCHF and Ketosis
Under Nutritional Ketosis, I describe it as the normal physiological fat-burning process the body goes into when in a fasting or carb-restrictive state (Keto Diet). When the body burns fat, energy is released into all the cells of the body, including the brain. This means that we have the ability to produce energy even if we don't eat (all the time). Since it can normally take a few days to a few weeks to get into ketosis, it then follows that people that are already in ketosis (through a strict Keto Diet), would have a better time at fasting.
How long should you fast for?
Fasting, also known as Intermittent Fasting or Extended Fasting, simply means going into a non-fed state from a fed state. As such, we all fast at some point during our normal day, in between meals and during rest periods. The common fasting schedules range from just a few hours to longer periods such as 16, 24, 36, 42 hours or even Prolonged Fasts of 2+ days. This may seem daunting at first, but after reading Dr. Jason Fung's blog on the Intensive Dietary Management site, watching his many YouTube videos, and reading his books, "The Obesity Code", "The Diabetes Code", "The Complete Guide to Fasting", and "The Longevity Solution", many people have conquered this feat with great ease.