Your brain doesn't understand that you are actually drinking a zero calorie diet soda. What spikes insulin release? Eating, of course but sweet tastes also can cause your body to release insulin, since the sweet taste primes your body to expect food with calories. With this concept in mind-excess circulating insulin will hinder or stop fat burning-doesn't it make sense that we don't want to risk spiking insulin during the fast? As soon as I understood that concept, it radically changed my whole approach to fasting. You can search within his blog if you want to read more of the posts that he has written about this topic, and others. In fact, he has several great posts about insulin on his website. Jason Fung also has a great blog post that explains how insulin works at this link, which will take you to his website Intensive Dietary Management. Do you want to "abolish lipolysis?" Not me! BRING ON THE LIPOLYSIS! #BurnBabyBurnĭr. From that article: "even small increases in insulin, within the normal range, virtually abolish lipolysis, or the breakdown of fat." WOW. Click here for an absolutely brilliant and simple explanation of how this works, with the key being: LOWER INSULIN=GREATER FAT LOSS. To do so, we want insulin to be as low as possible during the fasting time. During the fast, we want to BURN fat from our bodies. The question is: what actually DOES disrupt these processes?įirst of all, it is important to understand that we don't want to spike insulin during the fast, because insulin is a storage hormone. Keeping in mind that we want our bodies to have the optimum conditions for both fat burning and autophagy, it makes sense that we want to limit anything that would disrupt any of those processes. To read more about autophagy, check out my prior blog post: 2017-the-year-of-intermittent-fasting.html. We can access our stored body fat more efficiently and we are more likely to experience certain body processes such as ketosis and autophagy, which do many amazing things within our bodies related to health and longevity. It's important to understand that during a clean fast, our bodies are able to do many things that don't happen when we are in the fed state. Believe it or not, intermittent fasting is much more powerful than just being a means to eat fewer calories each day, and there's a lot more to it than the simple fact that we may be eating less food than we used to. So-what IS a "clean fast"? To understand that, think about WHY we are actually fasting. I think it is a beautiful way of describing what we are looking for during the fast. One day, we described the ideal fast as "clean", and the term stuck. We actually made it up in my Facebook support groups. Before I get started explaining the science behind a clean fast, you may wonder: where did the term "clean fast" come from? That's a great question.
#DOES CREAM IN COFFEE BREAK A FAST HOW TO#
Both of those posts address some of the most common questions about what may or may not be a problem during the fast, and how to know.Įven if you have read my book and my prior blog posts, however, I think it is important to briefly revisit some of the science behind the clean fast, which I am going to discuss here.
I have also addressed the concept in greater detail in a couple of my blog posts: can-i-have-_-while-fasting.html and coffee-coffee-coffeehow-do-i-love-thee.html. If you read the chapter called " Keeping the fast: What can I have when I am fasting," you should get a basic idea of what is allowed, and why.
I need to confess: this blog post has been long overdue, and I can't believe it has taken me so long to realize that I needed to officially address the concept of a "clean fast." It's discussed in Delay, Don't Deny, though I didn't call it a "clean fast" in the book. In fact, you may want to scroll down and start with their stories, and then read the part written by me. Their stories are even more powerful than any of the scientific reasoning I am going to share with you in this blog post. After I explain why this is true, you are going to want to read all of the anecdotal stories from members of our intermittent fasting support groups, which are below my explanation of what it means to have a "clean fast". I genuinely believe that a clean fast is the key to successful intermittent fasting, based on everything I understand about IF.
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