The birth of the Appetite Correction (AC) and the Fast-5 (F5) intermittent fasting (IF) lifestyle goes way back to 1994. Since then, it’s been an interesting ride as we’ve worked to share Dr. Bert’s discovery with the world. The tools for connecting with others have changed a lot over the years.
We value your feedback.
Today, we’re pretty thrilled to introduce our newest way to connect with the AC-F5 community: a podcast. We’re a few steps away from having it up and live on iTunes and other platforms, but until then, we’re here. We’d love for you to listen to this first episode and tell us if you’d like to hear more. Your comments and feedback energize us. They also help us to know what you want and need.
Links mentioned in the podcast:
How to Choose the Best Intermittent Fasting Regimen
Transcript of the Podcast
0:00 | Judi: Hey! How are you doing today? Welcome to our first podcast. I’m Judi. Allison: I’m Allison. Bert: And I’m Bert. Judi: We’re you’re hosts, and we are here to help you open the way to health, wellness and a rich and rewarding, fun life. We’re thrilled that you’re here and we hope you enjoy today’s conversation. Today, we’re going to tell you a bit about how we connected, and then we’ll move ahead to the heart of our conversation: We’re going to take a look at intermittent fasting. So, Allison? Allison: Yes? Judi: Can you give us the scoop on the start of our little trio? Allison: Yes! Well, Judi, I met you, as you know, several years ago, when we were working at the same company, and I remember very clearly that when we would have meetings with clients, or internal meetings, you would |
1:00 | never eat. And, I thought it was… Judi: That was—that was almost a decade ago. That was back in 2010. Allison: That is crazy. That is so crazy. Judi: Yeah. Allison: It seems like yesterday, and I remember kind of thinking “Oh, who is this weird lady? I know she was a doctor, but now she doesn’t eat.” And, I remember in a conversation we had once, I called you “air fern Judi,” because I’d never see you eat. I know that you would drink water and green tea throughout the day, but I never saw you eat. And, I remember asking you about it. And, you told me that—about intermittent fasting. And I thought “Whoa! This is crazy!” First, I thought it was weird that you were the first person that I’d ever seen that had a standing desk, and I was like, okay, this lady’s standing and she’s not eating. So then — Judi: I remember that. It was so funny. I mean, when you called me air-fern Judi, I laughed, because I thought “Wow, I really eat a lot! If she only knew! And I think I told you, I mean, I said, “I eat, just not during the day.” Allison: Yes, and I remember you were so kind about it. You were just like, |
2:00 | “Well, this is what it is and if you’re interested in learning more, yeah, I can tell you a little more about it.” Then I think I learned about Bert—that he had written The Fast-5 Diet and the Fast-5 Lifestyle book in 2005, so at that point, that was, I mean, he was—people thought he was absolutely off his rocker—at that point.” Judi: Absolutely. Remember, Bert, back in 2005? Bert: Yeah. Judi: It was total heresy. Bert: By the time we met in 2010 it was only a bit weird. But in 2005, it was like I was a heretic and everybody that was starting intermittent fasting, they were assumed—that they would become anorexic or something—have some kind of eating disorder. But—didn’t happen. Allison: No, I remember. I went and talked to my husband, Toby. I went home one day, and said “Oh, man, this lady at work, she doesn’t eat. Her husband—they don’t eat during the day, they only eat dinner.” And he was like, “Well, I guess that’s not—that’s not super-crazy, because that’s what I do. I’m at work. |
3:00 | I don’t like eating breakfast—it hurts my stomach, then at lunch I’m just busy, and I just wait until dinner.” I thought, “Yeah, I guess you’re right.” He really…he was a Fast-5er before I was a Fast-5er, and it was just his natural way of being. Judi: It’s a natural way of eating for a lot people—until they are…trained to adopt the usual American—if you’re an American— or cultural diet-lifestyle of eating often. Allison: Yeah. Bert: Yeah, and since that time—2005—we’ve run across a lot of people who either ate that way in college, then got out of the habit and wondered why they weren’t lean anymore, or they’ve continued to eat that way, but just kept it as a private practice, and nobody else really knew what they did, but had been maintaining it for their whole lifetime. Allison: Mm-hmm. Judi: It’s interesting because the way that you and I, Allison, shared this conversation, a little bit mirrors |
4:00 | how the concept of intermittent fasting, particularly the Fast-5 variety, has spread, because you so gently, so kindly, and with just humor, said “I’m noticing something, and is it okay if I say something about it?” And you did, and it was…it was through trust. And that’s how it has spread: word of mouth, friend to friend, trusted colleague to trusted colleague and so on. Allison: Yeah. It…I mean, back then that was—it was a Yahoo! group that—it was a message board— Judi: Oh, yeah. Allison: —that people—Bert had this big following on Yahoo groups and I thought this is, it was kind of taking off in Europe a little bit, in the Netherlands. Judi: Yeah, you know what, if I can interrupt for a second—Bert, I don’t remember the details, but that Yahoo group got some little award, too. Can you tell more? I don’t remember. Bert: In 2008, it got the “Best of Yahoo Health” award, which— Allison: Isn’t that cool? Bert: I guess there were probably more than one of them, but it did get that award. |
5:00 | Allison: Yahoo! Bert: Yahoo! Yeah. Allison: And, well, at that point, I thought “Okay, people need to know about this.” It’s not strange. I haven’t croaked. People are finding their ways to be healthier by doing this. And so, I was just…I really pushed. And pushed. And pushed and pushed, like “let me help you get the word out about this really cool thing.” Judi: Which was a really big deal, Allison, and I know we’ve talked about this in our meetings with the three of us and you and I together and you and Bert and so on. But, when Bert and I, in 2005, decided we were compelled to get the word out, we took a couple of steps. We were doctors—we did not know how to do that. So, we did a lot of on-the-job training of learning how to be communicators and sort of evolved into physician-educators, for lack of a better category. But, we did things like that crazy |
6:00 | walk when — Allison: Yeah, tell us—tell us about the walk! Judi: Yeah, for the podcast—when it was early…either late 2005 or early 2006, I had a niece in York, Pennsylvania who called and said, “Aunt Judi, you need to know about this guy who is walking across the country to get lean.” And I thought, “Wow, that’s pretty weird.” He’d walked through York, Pennsylvania. He was walking from St. Louis to New York, and then planned to walk from California back to St. Louis to do this across-country walk. So, I got on the phone with him – Bert was doing a sabbatical—and so I was by myself with just me and the kids and I gave him a call and we talked, surprisingly, for like an hour and a half or something. Allison: Wow. Judi: And, I determined he didn’t seem like an axe murderer, and I felt really, really, really compelled to walk with him. And so, I talked with Bert and I talked with my parents—and that’s a whole different story that we don’t have time for—but, long |
7:00 | and the short of it is, ultimately, I decided to walk with him from California to St. Louis. We only went as far as Oklahoma City and time ran out, and for reasons that made a lot of sense, he needed to continue the journey on, independently. Mostly because it was approaching my dad’s birthday and I had promised to be back by then. But, for 1500 miles, we walked step— Allison: That is cra-zy! Judi: It’s crazy. And I didn’t plan the route. And so, we were in the middle of the Mojave Desert in August, I think, or in the—I don’t remember what month it was. Bert: No, that’s… Judi: 126 degrees on the pavement. What’d you start to say, Bert? Bert: No, that you’re right, it was the Mojave in August. Judi: Yeah. Allison: Oh my gosh. Bert: Not the big, highly populated PR-push kind of place to be. Judi: So, right. So, we didn’t know what we were doing. We literally did this big guerilla thing when nobody was going to talk to us. Allison: And there was no social media happening, I mean— Judi: Right! This was |
8:00 | 2006! There was no Facebook—no widely available Facebook—and so, we didn’t get a whole lot of PR, but what we did do, and one of things that has happened throughout this whole crazy journey is I, and Bert, because we were in contact when we had cell signals—We learned more about the plight of this person with whom I was walking, Gary Long, walking side-by-side than ever, ever, ever had learned in medical school or in our clinical practice. And so, it was a very important piece of the Fast-5/intermittent fasting/appetite correction sort of whole concept growth. Allison: Mm-hmm. Judi: Yeah. But then, we met you and someone with a little wisdom in the area of how one communicates took us by the hand, thank heaven. So—you keep going. Sorry, I totally stepped on that. Allison: Oh, no, I think I was—that was just it, where I ended as “I pushed.” |
9:00 | Judi: Yeah, and so the three of us have been working together since 2010, and it has been an interesting ride. Yeah, a very interesting ride. One of the things that I think is important to know is back in 2005, Bert and I talked, and we said, “We’re compelled to get this word out, and we do not ever want anyone to have trouble accessing this because of funds or whatever.” And so, it’s been a free download and—and we said it will be for the rest of our lives. Allison: Yeah. Yes, the Fast-5 book—that’s what I was just so amazed—when I—you guys are so generous with your time and your knowledge. The Fast-5 book has always been free, and it’s a free download on the site now, bertherring.com. So, If anybody wants to learn about this, the information, even though it was written in 2005, the information still stands. I mean, it’s—it’s still an amazing book if you’re just starting out on your IF journey. Bert: And it’s a very short |
10:00 | book, too. Judi: Yeah, it’s funny. We’ve had a lot of names for this little short book. It’s pretty fun. Yeah, so it’s…and that will remain free as long as we ever have control of that. But, we also have learned that there is so much more that people want to know beyond just the basics. And, one of the differences in the way that we have connected with people over the years is that we’ve stayed in touch with thousands and thousands of people who have accessed that—that download and have learned about Fast-5 in a bunch of ways. And that brought us to—and when I say “us,” I mean the three of us, because we’ve—we’ve looked at this together for years, now, and the pattern emerged that the goal—the sort of the “holy grail” of intermittent fasting— is achieving appetite correction. Allison: Mm-hmm Judi: Oh, I wanted to say one more thing before we move to the heart of I intermittent fasting, and that is, when we talk about appetite correction, and that |
11:00 | idea and that concept and that perspective emerging, I think one of the things that has so facilitated the growth of our understanding of intermittent fasting is the three of us together each bring different perspectives, and the complementary nature of those has let us explore things that maybe, Bert and I wouldn’t have explored, explore things that maybe you wouldn’t have explored. Allison: Absolutely. Judi: Each of us individually brings a different piece to the table and the, the crucible into which we put ourselves brings some really, really interesting insights. Allison: Mm-hmm. Judi: Yeah. Allison: I think that I kind of come at it from a more, I guess, a mainstream view, whereas this all seemed so different to me years ago, but now I feel that people are more open to hearing about IF and this way of eating. Judi: Well, and this has been a really interesting |
12:00 | evolution that we have witnessed in not only our relationship as a trio, but you, Allison, as you got farther and farther and farther into understanding this and living a lifestyle that was not necessarily like everyone else lives, you went, as you routinely do, you took the deep, deep dive into understanding and exploring this with your work in public health. I mean, you are up to your elbows now in the public health arena and that brings, for us, a richer and more developed perspective. So, not just our marketing friend and our person who helps us to not step on our own feet all the time— Allison: Yeah. Judi: —but someone who brings a truly unique and important public health perspective to this exploration that we’re doing. Allison: Yeah, I think that IF was one of the key reasons that I’ve kind of shifted my life’s focus. I had come from a marketing background— |
13:00 | marketing and design—and figuring out how can I use those tools to really help people toward their best health and happiness. And I’m just really thankful for our group. Judi: Me, too. Bert: That’s an interesting side-by-side: marketing and IF, because successful marketing has been responsible for a lot of the problems that IF can correct. In terms of how it opposes it and corrects appetite is basically because it torpedoes the successful marketing and gets people to stop doing what they were taught to do by commercials. That gets into the history, which dates back to the beginning of the 19th, or sorry, the 20th century, the 1900s, when this all was slowly growing as a problem. We’ve been in a position to watch culture change in front of our eyes as the |
14:00 | shift has occurred from IF being this heretical move doctors and organized medicine would not think that anybody would tolerate for any length of time. And so, it was not viewed as a practical option. And now, here in 2019, we’re seeing it become quite popular—talked about on talk shows, even practiced on talk shows, so it is a radical shift. And, it’s kind of nice to see that that kind of change can happen, but it happened because people trusted each other and tried it. And then, the doctors started to do research on it. They wouldn’t have anything to do with it at first. Allison: Mm-hmm. Judi: You know, it’s funny—the whole marketing piece of this is really interesting to me because it—it sort of has tentacles. And that is, IF as a concept is also a tool for marketing publications, and |
15:00 | shows, and this and that. So, it’s…it’s a little bit—I don’t know if ironic is exactly the correct word—it’s a little bit puzzling to me that back in the day, 2005 and earlier, it was this heresy in the medical community. And then, over time, it’s become so widely accepted through what you said—trust and sharing and results—and just putting an article about IF into a magazine makes it a more sellable product. Allison: Mm-hmm. Judi: Now, the caution with that is, that one of the ways to sell things around a concept is to make it complicated. And I think we would all agree that one of things that compels the three of us to take the time and to apply the effort that we’re applying to making a podcast is that staying with the basics—the Study of One, that we can talk about later, in detail, and for those who are listening, |
16:00 | there’s a lot of information about the Study of One at bertherring.com. But staying with the basics and allowing a body to…to tell the answers to the person who’s the owner-operator of that body, is…is so valuable. Allison: Mm-hmm Judi: And, the complexity that has been added to a lot of intermittent fasting perspectives is okay. And, I think some people need complexity, but it takes a variety of approaches. I think the three of us recognize a lot of value in the simplicity— Allison: Mm-hmm Judi: —of keeping an eye on the prize of trying to achieve appetite correction, and using the tool of a Study of One in order to discover how to get to that place. Allison: Yeah, I think for anybody that’s listening that is afraid of IF because they don’t know “How many hours should I fast?” or “What should I eat?” or “How do I do it?” It is truly such |
17:00 | a simple and elegant solution—a way to achieve appetite correction. Just—I like lists, I like to think I’m checking things off, so to have something that has a little bit more complexity in it, sometimes to me, is comforting because I know that I’m on the right path. But truly, IF can be so simple and so easy that—don’t let people tell you that necessarily need to do it a certain way. Judi: Right. So, Bert, we’ve introduced this phrase, appetite correction. Can you take a minute and just talk about what that is? Appetite correction? Bert: Yeah, I’ll back up a little bit to intermittent fasting, because I’ve seen a lot of articles talk about intermittent fasting as if it is one set schedule—a certain interval, a certain eating window. But it’s not. Intermittent fasting is a concept that you eat, and then fast, on a set schedule. And that’s all there is to intermittent fasting. And, so, there are a lot of schedules that people adopt |
18:00 | as intermittent fasting, and that doesn’t make one right or wrong. They’re all different schedules of intermittent fasting. And the term got its start back when some animal experiments were being done in the 1930s, and the animals just weren’t allowed to eat every other day. And, an alternative to that was also calorie restriction, where the animals were just not allowed to eat as much as they would normally eat. Both of those techniques—I think it was actually the calorie restriction that was started first—both techniques wound up—the animals lived healthier, longer lives. So, there was some interest in this, but most thought that both for calorie restriction and for intermittent fasting, that humans would not practice it voluntarily. So, it kind of just stayed in the scientific journals for a long time, and a few people picked it up here and there. But, the key here is that there is no fixed |
19:00 | schedule of intermittent fasting. You can be fasting for 12 hours a day, or you can be fasting for 19 hours a day, like in Fast-5, or you can be fasting for one day a week, and still call that intermittent fasting. So, intermittent fasting is a tool, and people use it for different reasons. We have emphasized using it for fat loss—getting rid of surplus fat. But, some people use it as a theoretical way to enhance their longevity because it’s done that in animals. That hasn’t been shown in humans, and, in…in primates like uh, monkeys and chimpanzees, it’s had sort of less dramatic results that aren’t very clear. And so, it’s still kind of a speculative thing, but people practice their intermittent fasting sometimes just for their health. Another reason that people might practice it is to decrease inflammation, if they have some kind of inflammatory disorder. |
20:00 | An intermittent fasting schedule often helps with that. So, you’ve got this intermittent fasting tool, and it can do a lot of things, and one of the things that it does that we’ve talked most about is help with weight loss. And it does that most effectively through appetite correction. And that means that once you’ve practiced a working intermittent fasting schedule like Fast-5—19 hours of fasting each day with a 5-hour opportunity to eat—then in the part of your brain that counts calories and tells you how hungry to be when you eat that controls your appetite—is corrected, so that you take in the right amount. Even if you have a surplus of fat, your appetite adjusts for that, and so your hunger drops. Your appetite drops, and you just don’t want to eat as much. You don’t have to hold back. You don’t have to use willpower. You just don’t want to eat as much. And for me, that’s the big goal of intermittent fasting. So, |
21:00 | if your schedule gets you there, great. If it doesn’t, then you might want to try a different schedule. Judi: Right, and I don’t want to keep referring back to the website, but there is a really lovely blog post that you did, Bert, that talks about how to choose a schedule. And, the value of—I mean, again, this is as complicated or as simple as one wants to make it. There are schedules that keep the insulin way low for a long time, and there are schedules that keep it low for shorter times. And so that blog post offers a nice guide to deciding what kind of a window works best in any individual person’s case. Now, we did a survey of people who live a Fast-5—which is a 19-hour fast with a 5-hour window—lifestyle back in 2016. And during that survey, one of the things that we noted was a number of people went from a schedule that’s called 5:2— a scheduled way of eating that |
22:00 | was popularized some years ago. A lot of people who took the survey had tried that in the past, and one of the things that was notable to us, is that the schedule of 19 hours of fasting and 5 hours of an eating window seemed to be, for the majority of people, the minimum fasting period that conferred appetite correction. And one of the things that I remember feeling a little nervous about, and still do to some degree, is that if one adopts a 16:8—which another popular regimen of intermittent fasting—it’s been popularized in magazines and in other sources—and they don’t achieve appetite correction, my concern is always that they’ll throw in the towel and say “IF doesn’t work for me.” So I think the importance of understanding that it is truly a study of one—each person is individual in their biology, in their chemistry, and…and the pieces of how they interact with the world and |
23:00 | the regimen that allows them to achieve appetite correction may not be the same for one person as it is for their neighbor down the street. Bert: Right. And unless people know that appetite correction is out there and what it feels like, they don’t know whether their intermittent fasting program is right for them or not. And so it is important to know that what we’re talking about is a…a time when you do not need to use willpower to refrain from eating. It’s a big change and a lot of people have never even felt it before, but we hear stories like “I was halfway through my meal and I just couldn’t eat any more.” That’s what appetite correction can do. It can really have your appetite center just shut the door on your eating so that you don’t have to white-knuckle it through willpower or conscious efforts to stay away from food. And, at the same time, it lets you eat the things that you want. You just wind up eating less of them. |
24:00 | Allison: Mm-hmm. Right. And for me—I was waiting for breakfast. Waiting for lunch. Waiting for dinner. But once you achieve appetite correction—and I did it through a few different ways, including IF—4 or 5 o’clock would come and I — “Oh, it’s time to eat, I guess.” It’s such a different feeling than that just constant anxiety about “Okay, I’m going to eat again, and “What am I going to eat?” and “Is it going to be too much?” and “How much of this or that?” and “How many carbs?” and it takes all of that junk away. Judi: It does. One of the things you said earlier, Bert, was about this sort of variety of ways of doing it, and Allison, you just mentioned you used IF and a number of other—I don’t know how many, but “plus—” Allison: Mm-hmm. Judi: “IF plus.” So you did some hybrid of this and that to achieve appetite correction, knowing that that was the goal. One of the things I see in the popular press and in some conversations surrounding intermittent fasting and other lifestyles, is it feels like it’s sport to |
25:00 | some degree: “I—I live a more austere lifestyle.” And so, I am a better IFer. I’m a better intermittent fasting individual than someone who has a— let’s say a shorter fasting window and a longer eating window. I mean, there’s no competition here. This is what works for a person individually to be able to sustain this lifestyle for—indefinitely, forever, if it is good for their body and it feels good. Allison: Mm-hmm. Judi: I mean, I don’t know if you guys have noticed that, but it seems there’s some— Bert: Competitive fasting? Allison: Mm-hmm. Judi: Competitive fasting, yeah! Allison: Yeah. Judi: Maybe it’ll be a sport in the Olympics. Bert: Yeah, that’s interesting, because everybody’s got a different finish line, or— Judi: Yeah! Bert: —a different body, so they’re going to have different results, and so their win is different from somebody else’s win. Actually, it’s the same—the goal is health—but their route to get there is going to be different and could have |
26:00 | a totally different schedule. Judi: And you say the goal is health—it is—but health is not just physiologic metrics that fit a particular structure. I mean, health is this whole thing of what we said—wellness and a rich, rewarding and fun life. I mean that— Bert: Mm-hmm. Judi: —that’s all part of healthy living. Bert: Right. For some people, that means having that glass of wine in the evening. For somebody else, it’s a beer or a pizza. That’s part of the fun of life that should be included and accessible in any kind of long-term lifestyle. Allison: Mm-hmm. Judi: Well, exactly. Or, for some people, it is to avoid those things. That becomes—that makes them feel less anxious, or more intentional, or whatever. I mean, there are so many ways— Bert: Mm-hmm. Judi: —that a person’s way of being factors into this. This idea that one size fits almost everybody is just kinda nuts, in my mind. Allison & Bert: Mm-hmm. Allison: What I like about Fast-5 is that it gives you |
27:00 | a very basic and easy pathway. It’s 19/5. You choose when you want to fast. You choose when you want to eat, so that five hours can be anytime. That’s the starting point. That’s the framework. And then, you tweak it based on how you’re feeling or your schedule or any number of things—what kinds of foods that you like or don’t like. It’s all up to you. But, with Fast-5 you just—you have this basic framework, and it works! Bert: Yeah, it is pretty simple. It’s just that one rule: Eat within five consecutive hours. Period. And that’s it. And then, you build on that. Allison: Mm-hmm. Judi: And it works for, in our experience, over the last—I guess now, 14 years of interacting with people who have adopted that lifestyle, it works for well over 90 percent of people. And for those for whom it doesn’t work, we love to engage with folks and talk about how they can either conduct their Study |
28:00 | of One to find a regimen that does work, or if intermittent fasting of whatever regimen or any variety is not working for them, what else is going on. Allison: Mm-hmm. Judi: And, there are people for whom intermittent fasting is not the whole solution. Bert: No, absolutely. And we’re still working to help those people. We’re digging, and when we find something new that can help, we’ll be putting that out, too. Judi: Yeah, absolutely. So, I think this has been a really nice overview of how the three of us got together, where we’re headed, a little bit about our start in the Fast-5—or not the Fast-5 world, I guess the intermittent fasting world. I do want to say something kind of funny, and that is, I read someplace a little meme that said “Leave it to Millenials to turn skipping breakfast into intermittent fasting”. And, I looked at Bert, who’s clearly not a millennial. In fact, I’ll admit it—like, the tail end of the Boomers, and— Bert: I think it’s more the beginning of Gen X. Judi: Okay, the beginning |
29:00 | of Gen X. Anyway, somewhere on that border—in the borderland. And so this fellow from the borderland actually turned skipping breakfast into intermittent fasting way back in what? 1992? Bert: ’94, yeah. Judi: Okay, ’94. Anyway, a long, long time ago, so way to go, there, Bert! Allison: Yeah, thank you, Bert! Judi: So, I guess that closes it for today’s podcast. We appreciate you guys listening, and we are really, really, really looking forward to doing more of this! Allison: I hope that we do more. For now, the podcast will just be up on bertherring.com, but in the future we hope to bring you more episodes and make this into a regular podcast. So, if you want updates about when those podcasts are coming out; if you want to stay tuned for blog posts or find out more about what we’re up to, go to bertherring.com and sign up for the newsletter. We promise we won’t spam. Bert: And if there’s a certain topic that you’d like to hear |
30:00 | us discuss, then let us know. Judi: Yeah, we love questions. They’re really fun. All right, bye! Allison: Bye! Bert: Bye! |
7 comments
Yes please let’s have more. Great interaction between the 3 of you. I am 2 months in to IF and still tweaking. My body composition has begun to noticeably change but I am still awaiting appetite correction. So can we explore this more.
Thanks for commenting! We don’t have plans in place now for more podcasts, but that may change in the near future. We’ll keep your suggestion in mind! Best wishes for your success!
I enjoyed the podcast. I read the book along time ago and it worked for me for awhile, then life got in the way. I believe it was vacation. We have a big family and someone is always eating when we get together. I plan to incorporate IF back into my lifestyle. I look forward to hearing more podcasts. Thanks.
Looking forward to more! Great podcast.
Thanks! And thank you for taking the time to comment!
I want more! Enjoyed all of that sample. Easy to understand and informative. Good dynamic in the group. Sounded like a convo between friends. I think this style will be great for helping new IFers not feel overwhelmed. Very inviting.
We’re glad you liked it, and there’s more on the way. Thanks for taking the time to comment!