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Imagine losing 1½ inches off your waist, lowering your biological age by 2½ years, and reversing key markers of disease in just fifteen days. That’s what clinical trials show the Fasting Mimicking Diet can do.
In this episode, Dr. Z talks with endocrinologist Dr. William Hsu, who breaks down the science behind this powerful metabolic therapy. Learn how a 5-day, simulated fast protocol activates stem cells, triggers autophagy, reduces inflammation, and restores the body’s natural ability to heal.
You’ll also learn why most fasting trends fall short, how to fast safely, and why FMD is changing the future of longevity and restoring the body’s God-designed ability to repair itself.
If you want a proven, science-backed way to reset your metabolism, improve weight, and age with health, this episode is for you.
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Episode Highlights
- 00:00 Introduction
- 03:00 What the Fasting Mimicking Diet is
- 04:12 Why modern systems ignore self-healing
- 05:28 How fasting activates hidden repair pathways
- 06:47 Why intermittent fasting doesn’t trigger this
- 08:03 Understanding autophagy and cellular cleanup
- 10:44 The role of stem cells in rebuilding new tissue
- 12:01 Clinical proof FMD lowers biological age
- 13:19 Metabolic, liver, insulin resistance, cancer
- 14:42 Why DIY fasting can be unsafe
- 16:08 A 5-day plan that flies under the radar to mimic fasting
- 18:27 Use medical supervision for diabetes and hypertension
- 20:15 Preserving lean body mass while fasting
- 22:04 What to expect physically during days 1–5
- 24:19 Increase metabolic flexibility with repeated cycles
- 26:41 FMD as a tool for long-term metabolic restoration
READ TRANSCRIPT
[00:00:00] William Hsu: You know, one person, a person may be 45 years old, but he could have a 50-year-old body or could have a 35-year-old body. So physiological age, or biological age, is try to take aim at what is really reflecting the true health of that body other than the calendar year, which is really not very predictive.
[00:00:19] So think about it, 15 days of intervention by this simulated fast we call the Fasting Mimicking Diet, is able to lower that biological age by two and a half years. Now why is that important? Well, because today’s medicine in our model of medicine, the today’s topic is on strokes and cardiovascular diseases.
[00:00:38] So think about the neurologists, take care of them. And then if you have diabetes, the diabetes doctor, the endocrinologist, take care of them. And then you have cancer, the oncologist take care of them.
[00:00:48] Dr. Z: Mm-hmm. Mm-hmm.
[00:00:48] William Hsu: Right? But you think about what is the common cause of that? Yes, there’s lifestyle, there’s obesity, there’s all that. But aging is probably one of the most important predictor.
[00:00:58] In other words, 25 year olds typically don’t have stroke, even though they might eat like pigs.
[00:01:05] Dr. Z: Mm-hmm. Mm-hmm.
[00:01:06] William Hsu: And party like one and never sleeps at night and drink a lot, they don’t get strokes. Why? Because the body’s ability to heal there is much more robust than somebody in their sixties. Right? That’s a fair statement.
[00:01:18] True.
[00:01:19] Dr. Z: Yes. Oh yeah, of course.
[00:01:20] William Hsu: And, and so this is why now, by making the cells, by going through that cellular rejuvenation process, by making the cells go through autophagy, through simulated fast. Now the cells become younger. When they shrink, they digest the itself and then re-expand back with new components when fuel becomes available.
[00:01:41] You’re essentially making the cells younger. And that doesn’t only happen in one type of cell, it happens in the body.
[00:01:49] Dr. Z new: Hey friends, this is Dr. Eric Zielinski. Most people just call me Dr. Z. Welcome to the Natural Living Family Podcast.
[00:01:56] Together we’ll uncover biblical wisdom and practical tools to help you and your family escape the confusion of this toxic world and walk in the abundant life God has promised. This isn’t about chasing trends or doing it all. It’s about renewing your mind, rejecting broken systems, and embracing God’s design for healing and wholeness.
[00:02:16] The truth is God has a beautiful plan for your life, and yes, your health matters to Him. Are you ready to get started? Awesome. Let’s dive in.
[00:02:27] Dr. Z: Alright Dr. Hsu very impressive biography. When people hear things like Yale and Harvard, it’s like they stop. It’s a showstopper. Legitimate expert, legitimate experience, you bring so much value and I’m honored that you’re here. So thank you so much, sir, for joining us.
[00:02:43] William Hsu: Uh, Dr. Z thank you so much for inviting me and, I really look forward to our conversation today.
[00:02:50] Dr. Z: Admittedly, on purpose, I am ignorant of this topic. I know a basic understanding of this topic, but I chose not to dive in too deep ’cause you had wonderful talking points that you recommended that we go through. But I wanna take this and I wanna preface this, doc. I’m coming as a student.
[00:03:09] I love this because one of the reasons why I like doing these interviews and these sorts of things is because I have to always be learning. So I wanna encourage y’all, we’re gonna go to school here. Professor Hsu. Can I call you professor? We’re, we’re going to class, so come on. Let’s go right at it.
[00:03:24] Like, what is FMD? I actually had to look up the acronym. That’s how ignorant I was of it. So like, what is FMD? How does it relate to cardiometabolic health and why should we care?
[00:03:36] William Hsu: Well, I think, you know, this entire focus on the Fasting Mimicking Diet, that’s what the FMD stands for. It’s probably one of the best kept secret, so far in healthcare.
[00:03:46] And the reason I say that is because I think modern medicine has really forgotten the fact that the body has the ability to heal. And we treat our body almost like it’s something that needs outside help all the time and forget to activate some of the inherent repairing system of the body.
[00:04:07] What the fast mimic diet is doing is really try to activate these hidden genes, these hidden ability for the body to heal itself, especially when it comes to chronic illnesses. I’ll give you a very quick example, Dr. Z is that when we get a cut on the skin, what do you do?
[00:04:28] Dr. Z: Yeah. I mean, yeah, there’s bleeding, there could be swelling, inflammation, the body starts to heal.
[00:04:33] William Hsu: But then most of us just wash it off and put a bandaid on it
[00:04:36] Dr. Z: Mm-hmm.
[00:04:37] William Hsu: And allow the body to heal. So the body has the build in system for this. Now, when it comes to chronic illnesses, yes, we, all the healthcare has been talking about changing lifestyles and so on and so forth. That is certainly important but, we forget the fact that the body actually has this ability to heal even when it comes to metabolic health.
[00:04:59] And one of the most potent intervention I think we can trigger these healing ability is actually through the practice of fasting.
[00:05:08] Dr. Z: Mmm-Hmm
[00:05:09] William Hsu: Now fasting has been around for a long, long time. In fact, if you look at all the organisms around the world, every living organism, fasts from time to time because nature doesn’t always offer food. There is times where there’s no rain. There’s times when there is no food.
[00:05:25] And this certainly the organism over the course of time have to develop mechanism to adapt to these periods of fasting and then periods of nutrition. But, except in modern days where we consume food all around the clock, there’s virtually no time where we don’t have food.
[00:05:44] And this hidden ability to response to fasting has been kind of buried for a long, long time until now. In the 21st century where we’ve begun to understand there is a intersection between nutrition, fasting, and longevity. And this is when by understanding the molecular mechanism underlying fasting, we’re now able to really leverage different modalities of fasting to drive metabolic health.
[00:06:13] And that’s really the focus behind the Fasting Mimicking Diet.
[00:06:19] Dr. Z: So one of the reasons why Dr. Shu, I didn’t do extensive research before this, um, a, I trust that you are the foremost expert on it. And so I don’t, I feel like I didn’t need to cover any holes. And sometimes when you’re on this end of the microphone, you have to cover some holes and gaps.
[00:06:34] And I also wanted to have a level of ignorance because I wanted to ask questions that other people would think. And it’s hard sometimes when you know the topic, and I mentioned that because of this.
[00:06:45] Most people listening, watching have heard of intermittent fasting. Most people have heard of water fasting. If you’ve opened up your bible, if you’ve opened up any sacred text, fasting is a core part of spiritual rites of passage.
[00:06:57] Yet outside of that, I wanted to look at what is different about this. I get the name Fasting Mimicking Diet. But explain it. Like demystify this fasting mindset.
[00:07:10] William Hsu: Yeah.
[00:07:10] Dr. Z: That we have in the health world that seems to have taken influencers by storm.
[00:07:16] ‘Cause everyone’s intermittent fasting. It’s like part of the thing you have to do, right? You don’t, if you don’t intermittent fast, you are not healthy. That’s essentially the message that we’re getting.
[00:07:24] William Hsu: Yeah.
[00:07:24] Dr. Z: Talk us out of that or explain what this is and how it’s different.
[00:07:29] William Hsu: Yeah, I mean, the whole field of intermittent fasting came about a couple years ago and it was estimated that 10% of all Americans are doing some sort of time restricted eating, 16:8 intermittent fasting.
[00:07:41] But I think fasting certainly has its role because, and it is also should not be very foreign to us because we, everybody fast every single day. Believe it or not, when we sleep, we fast. Right? And so just by extending the window of that period, it certainly has some biological effect.
[00:07:59] But what I’m referring to today is something that is deeper. Meaning that, when an organism in nature does not see food for 3, 4, 5 days, the cellular responses to that kind of calorie restriction, or dietary restriction, is very different than if somebody fasts for 16 hours or 18 hours. You can imagine, right? It’s
[00:08:22] Dr. Z: Mm-hmm.
[00:08:22] William Hsu: It’s gotta be a different lever, right? And so it turns out the way organisms survive through times of starvation and fasting, prolonged fasting, is the cells first look for other cells in the body that stores energy. So they will go to, for example, typically the fast cells.
[00:08:39] Dr. Z: Mm-hmm.
[00:08:39] William Hsu: for source of energy. But it also look inwardly itself to say, well, what if the fuel doesn’t come? How are we gonna survive? So the cells look inside itself and says, well, what in my cellular organelles, these are tissues and organs inside the cell, can I burn off as a source of energy? As a source of calorie so that I can live another day?
[00:09:03] Now, you can imagine now, the life forms have has been on earth for. However, millions of millions of years that’s debatable, but it for a long time.
[00:09:14] Dr. Z: Mm-hmm.
[00:09:15] William Hsu: There is these structure, these mechanism, these key steps that the cells always take.
[00:09:21] So it’s going to look at itself and say, okay, what is the least valuable things that I can burn off so I can survive? Right? You can imagine, it’s almost like… I often use this analogy, I live in the New England area. In the cold winter, let’s say if your heater breaks down and you have a furnace, what are you gonna do?
[00:09:39] You are gonna say, well, let’s put some wood in there, right? To keep us warm until daylight comes. Then somebody can come and fix the heater. Now what are you gonna throw into the furnace is never gonna be the most expensive furniture you have.
[00:09:52] What are you going to do? Gonna look around and say, oh, that chair is a half broken. Okay, let’s burn it off. Right? That’s exactly what the cell would do is say, well, I have no food. It’s been three, four days now. I, you know, let’s survive. How do we do that?
[00:10:05] Well, you see that mitochondria there that’s kind of dysfunctional for a little while? Let’s get rid of it. What about that misfolded protein there, right inside the cells? What about their tissue and cellular structure? They’re a little more worn out, a little bit older, let’s chew them up.
[00:10:21] And the body, actually the cells, develop these digestive mechanism to eat itself. And the technical name is called autophagy.
[00:10:31] Autophagy. That’s self-eating. That process. So now the cells actually survive for another day, and then more chewing of these older worn out cells for another day, yet another day. Then obviously if starvation continues, the cell eventually dies because it just like, you know, it’s like cutting off your arms and legs to survive.
[00:10:50] Dr. Z: Yeah.
[00:10:51] William Hsu: But think about what happens when food becomes available again. Day six. Day seven. Nature, you know, the rain comes, the food becomes available again. The cells now have these nutrients. Now the stem cell mechanism of the body is now activated because now you want to grow back. And then the cells now re-expand.
[00:11:11] They replace the old parts now with new parts, with the new nutritions coming in. And so think about that process. What other process are you able to get rid of the older parts of the cells. Now with food coming in now you are rejuvenating, you’re recycling for the new, you are producing the new parts, you’re making the cells younger.
[00:11:31] And that process happens in almost every cell, every tissue of the body. This is regenerative medicine at its best. Requires no drugs from the outside. It’s all built in into every cell of the body.
[00:11:46] Now medicine has by and large neglected this aspect until 2016. Professor Ohsumi in Japan won the Nobel Prize for describing this autophagy process. And now the whole field of medicine is now turning into; What does this mean? What is the implication? How do we activate these repairing system in different disease state?
[00:12:10] So that’s kind of the background, the scientific background. And certainly be happy to go into what Fasting Mimicking Diet is later. But this is the key there.
[00:12:19] Dr. Z: Yeah. And just pulling this up real time here. Early 2024. This is Journal Nature and this is a pretty powerful statement. And Fasting Mimicking Diet, shown clinically to cause hepatic and blood marker change indicating reducing your biological age and disease risk. And this, it seems clear and I was hoping what we could do is highlight, these are the benefits, right?
[00:12:43] Obviously this is the context of heart attack and stroke prevention and recovery. We’re looking at even connection with insulin resistance and diabetes. The top three of the top 10 killers of the world. So this process, this Fasting Mimicking Diet, protects normal cells while killing damaged cells, including cancer, autoimmune, reduce inflammation, promote multisystem, regeneration, extend longevity. Essentially everything that you just said.
[00:13:07] Yet what I’m pointing out, this is well researched. It’s well documented. And as, like anything I imagine, and my context of this is the wonderful essential oil. This is where my specialty is, and it’s a two-edged sword.
[00:13:21] As much as you could utilize essential oils to help heal, you could misuse, and there could be drug interactions. I mean, I know people who accidentally put the essential oil into their eye and then end up having damage to their body.
[00:13:32] So what are, I wanna cover, some of the risks, the dangers, if you don’t do this right? Can you explain how exactly this works? What are guidelines?
[00:13:41] ‘Cause I could see some well-intentioned people, myself included, who don’t necessarily do the research, who ends up doing something willy-nilly. I can’t live off of a granola bar a day, you know? I mean, tell me how does this work practically?
[00:13:55] Hey, friend, real quick, if you’ve been listening and thinking, I wanna live this way, but I need help, well, that’s exactly why we created the Bible Health Academy. It’s our monthly mentorship and training hub packed with Bible health solutions, non-toxic living strategies, and the like-minded community you need to walk in the abundant life God designed for you.
[00:14:15] Dr. Z new: Whether you’re brand new to natural living or ready to go deeper, this is where transformation happens from the inside out. Visit biblehealthacademy.com to learn more. We hope you’ll join us.
[00:14:27] William Hsu: Yeah. So Dr. Z, you did your homework. You pull up their article right there. It is certainly one of the most important articles that linked longevity, fasting, and then potential disease reversal. This is a very important.
[00:14:42] So let me quickly summarize this paper. You show that just by activating this inherent body’s ability to repair through fasting. In this case, through the fasting mimicking diet, which is a five day journey. Right?
[00:14:56] Five days and three times. So five days per month. People going back to living their normal life. Repeat five days a simulated fast again, with Fasting Mimicking Diet. That’s another month. And then five days, another month.
[00:15:08] It show all these benefits; liver fat going down, insulin resistance going down, immunosenescence gets addressed, meaning that the aging of the immune system gets addressed. And also this reduction in biological age by two and a half years.
[00:15:23] Dr. Z: Wow.
[00:15:23] William Hsu: Let me qualify that a little bit. Biological age is essentially saying that, it’s a different way of characterizing someone’s health. You know, one person, a person may be 45 years old, but he could have a 50-year-old body or could have a 35-year-old body. So physiological age, or biological age, is try to take aim at what is really reflecting the true health of that body other than the calendar year, which is really not very predictive.
[00:15:52] So think about it, 15 days of intervention by this simulated fast we call the Fasting Mimicking Diet, is able to lower that biological age by two and a half years. Now why is that important? Well, because today’s medicine in our model of medicine, the today’s topic is on strokes and cardiovascular diseases.
[00:16:10] So think about the neurologists, take care of them. And then if you have diabetes, the diabetes doctor, the endocrinologist, take care of them. And then you have cancer, the oncologist take care of them.
[00:16:20] Dr. Z: Mm-hmm. Mm-hmm.
[00:16:21] William Hsu: Right? But you think about what is the common cause of that? Yes, there’s lifestyle, there’s obesity, there’s all that. But aging is probably one of the most important predictor.
[00:16:30] In other words, 25 year olds typically don’t have stroke, even though they might eat like pigs.
[00:16:37] Dr. Z: Mm-hmm. Mm-hmm.
[00:16:38] William Hsu: And party like one and never sleeps at night and drink a lot, they don’t get strokes. Why? Because the body’s ability to heal there is much more robust than somebody in their sixties. Right? That’s a fair statement.
[00:16:50] True.
[00:16:51] Dr. Z: Yes. Oh yeah, of course.
[00:16:52] William Hsu: And, and so this is why now, by making the cells, by going through that cellular rejuvenation process, by making the cells go through autophagy, through simulated fast. Now the cells become younger. When they shrink, they digest the itself and then re-expand back with new components when fuel becomes available.
[00:17:13] You’re essentially making the cells younger. And that doesn’t only happen in one type of cell, it happens in the body. Now why is that? Because when there’s no food coming to the body, it is a universal stress to the every organ system in the body.
[00:17:27] It’s like when you run a company and your company’s revenue is down by 90%, every department gets affected. Every department needs to be restructured. Until you begin to chop off the people who you think are less efficient. You get rid of the unit that don’t function, then what? You become lean and mean, and then you are able to survive the downturn.
[00:17:49] Now when now you become very efficient you’re profitable again. What do you do? You grow them back. Now this organization’s healthier than before. That’s exactly what happens to the cells, to the body.
[00:18:01] And so in this example, by simulating that five day fast three times a year, just total 15 days, this is an amazing impact in healthcare.
[00:18:12] Dr. Z: So practically speaking, is this a calorie counting mentality? Is it, I mean, can you give us some guidelines of how someone can start to do it? Is it just someone goes to ProLon and purchases the package and everything? I know everything is there if someone does that.
[00:18:26] William Hsu: Yeah.
[00:18:26] Dr. Z: So explain maybe some of the basis of how-tos.
[00:18:30] William Hsu: So, you know, one can argue and say, Hey, why don’t we just go drink water for five days and nothing else, and go to a mountain and just rest up and don’t do anything. One can. But the issue here is it safe? Is it safe for them to do this right? Number two especially someone with condition, with a health condition, without medical supervision this is probably really risky to go off and just fast unsupervised.
[00:18:55] Right?
[00:18:55] Dr. Z: Mm-hmm.
[00:18:56] William Hsu: And that’s why there is this new technology called the Fast Mimicking Diet that was invented in a university laboratory in conjunction with L-Nutra, the maker of this product. Essentially it was funded over 25 years by the National Institutes of Health. Especially the National Institutes of Aging put in about $36 million of research money to ask a very essential question.
[00:19:22] Given that fasting for five days may not be very safe, and also very few people will be able to do that, how can we provide some nutrients that kind of fly under the radar?
[00:19:34] Dr. Z: Hmm.
[00:19:34] William Hsu: So people who are going through the fasting mimicking diet can get the benefits of fasting while you’re being supported with the nutrition that’s in the package. That is the story behind the Fasting Mimicking Diet.
[00:19:46] Fast forward right now, over a million people have benefited from using the Fasting Mimicking Diet. Initially, we have a commercial product people can buy called Prolon. But now as we are going to healthcare, as we are talking about conditions such as diabetes, insulin resistance, and metabolic syndrome. We now have a program with medical doctors
[00:20:07] Dr. Z: Wow.
[00:20:08] William Hsu: Supervision. With dieticians supporting, this entire journey so that medications could be adjusted accordingly. With the goal, with the eventual goal of restoring metabolic health while reducing dependence on medications. And that is the program called L-Nutra Health.
[00:20:26] L-Nutra is the name of the company. Health, you know, suggesting this is really a medical program. Still using the same technology that I described earlier, that fasting Mimicking Diet. That flying under the radar. But now L-Nutra Health is now bundled together in this service so that your listeners and people who wanted to benefit from the FMD can do it with MD support. MD supervision with RD support. It’s a full fledged program.
[00:20:57] Dr. Z: Hmm. Well, I’m intrigued. I used to, every Monday I used to water fast. And it was wonderful. It was wonderful for the season of life that I was in. And I found myself, you know, having a very predictable life at the time. Currently we have six children. My wife is pregnant with Baby Z number seven.
[00:21:14] Oh, and I’ll tell you yes, I’ll tell you, I have craved and I’ve been craving to fast. But in all transparency, I get really, really tired. Yeah, when I fast and
[00:21:27] William Hsu: I wonder why.
[00:21:29] Dr. Z: Well, and with the demands I have with family, with work, ministry, everything that we do, I have not been able to find that time versus, like you said, I’m gonna have to go away for a week to a retreat center with no obligation just to focus on me.
[00:21:47] So what you’re sharing here is almost like a too good to be true, but proven science that is. You can have your proverbial gluten-free, sugar-free, dairy-free cake, and eat it too, right? So what kind of things explain if you could, when someone starts this, what are some things that they can expect?
[00:22:04] And I wanna preface this because I’ve fasted a lot. I’ve gone days water fasting. I did my daily or once a week. Oftentimes when I’ve done extended fast, there were headaches. There would be, detox, some type of symptoms. Like achy joints, next thing you know, my old shoulder injury from high school came out and like, what in the world.
[00:22:23] Obviously, we know scientifically what’s happening, so what kind of things can people expect? Yeah. And then boom, energy and next thing you know, I feel like I’m on cloud nine. And so can you give us through some expectations for people as they go through?
[00:22:35] William Hsu: I think I wanted to address two different crowds.
[00:22:38] You know, one is the healthy individuals who wanted to drive longevity and health span, and that’s good for health and wellness. The second crowd is people who have health conditions and want to use this to really help to activate their body’s ability to heal. I think. It’s two different conversation.
[00:22:56] You know, speaking to the first conversation, the first group of people who are doing this for health, wellness, and longevity, I would say, Hey, keep at it. Right? So the body is go through many changes throughout this five day journey with the Fast Mimicking Diet. First day, what’s happening is your body’s gonna try to burn off those glycogen that’s stored in your muscle and your liver. Takes about 24 hours.
[00:23:18] Then you go into fat burning mode. But the body still has enough fuel there. So it’s not gonna trigger these existential threat of no food. Okay?
[00:23:30] So it’s by third day, four day that the cell says, Hey, you know what? We’re really not getting any food from the outside now. We gotta fend for ourselves.
[00:23:38] That’s when autophagy truly happens. So by day three you’re like, oh my goodness. You know, we called it the bankruptcy day, like The body feels like there’s just nothing coming. Like we gotta activate these emergency release. Right. And that’s when autophagy probably likely to start day three, day four.
[00:23:56] And then takes a couple days for the cellular rejuvenation to occur. The good news is the more frequently you’re doing these fasting, the more metabolically flexible you are. Meaning that you know at first, if you haven’t fast in a long time, you wanted to fast, your body is like, where’s my carbohydrates? You know, where’s my sugar?
[00:24:15] Dr. Z: Mm-hmm.
[00:24:15] William Hsu: Yeah, yeah, yeah. I can use fat, but, you know, it, it’s like, burning carbohydrates it is like going to the ATM when you don’t have money. You just say, Hey, you know, card and card out, five seconds and the money is in your hand. Right?
[00:24:27] Now when you go into a deeper deficit, you gotta now maybe sell your stocks. Now that’s not so easy.
[00:24:33] Dr. Z: Mm-hmm.
[00:24:33] William Hsu: You gotta trigger, sell it, then cash comes in after a few days, and then it gets transferred to your bank ,and now you can use it. Right? So it’s a deeper process. Okay.
[00:24:42] But the more often you do this, the more you fast, you become more metabolically flexible. Much like when you go to the gym. The first day after you work out. Oh, soreness everywhere. Right. But if you keep going back, hey, you can handle the same load now without soreness.
[00:24:58] Dr. Z: Mm-hmm.
[00:24:58] William Hsu: That physically, we call that flexibility and strength. Metabolically, it’s the same. Okay, so I always say yes.
[00:25:06] You know, a lot of these, these aches and pains that we call the keto flu sometimes when people experience, hunger because you’re not eating much, right? And you feel cold because your metabolism slows down for that few days. And that’s natural. And, you know, it just gets better once you practice fasting.
[00:25:24] And the Fasting Mimicking Diet makes it easier. It not only extends your intermittent fasting period, but actually it triggers some of these cellular mechanism like autophagy.
[00:25:36] Intermittent fasting simply is too short of a stress, too shallow of a stress to trigger these cellular survival mechanism. It’s only through the practice of prolonged fasting that we’re able to see these cellular rejuvenation, the biological age reduction, the preservation of lean body mass. All these gets brought up with a longer fast.
[00:25:56] But again, that’s why the longer fast is harder to do. It’s probably 0.01% of the people are willing to do this, or, is safe to do. That’s why there is this invention of the Fasting Mimicking Diet.
[00:26:11] Dr. Z: Have, have you ever heard of the master cleanse?
[00:26:13] William Hsu: Tell us more about it.
[00:26:14] Dr. Z: I’m just wondering ’cause it’s, this sounds like an infinitely healthier version of that.
[00:26:18] Made popular decades ago, I think it was Beyonce that made it famous.
[00:26:23] William Hsu: Okay.
[00:26:23] Dr. Z: The lemonade diet is what she used to lose 40 pounds in a month or something. I forget what it was. But essentially you’re drinking a mixture, liquid, of freshly squeezed lemon juice, maple syrup, and cayenne pepper with water, and that’s all you’re consuming.
[00:26:39] And it’s recommended to do that, at least 10 plus 14 days. And essentially what it, it’s tapping into the science of what you’re sharing, but essentially the flying under the radar nutrition is pure maple syrup, sugar. And so that’s what that’s the diet. So you could shed weight. Yeah, and it became very popular, especially in very, very, we call it granola natural health circles, in the eighties and nineties, but what I’m hearing from you is a much more well balanced, nutritional approach
[00:27:09] William Hsu: Yeah.
[00:27:09] Dr. Z: To this. So, I mean, any kind of examples of certain foods that people would be consuming. I’m not sure if you can put the cat.
[00:27:15] Yeah.
[00:27:16] William Hsu: So inside the Fasting Mimicking Diet, it’s a five day structural meal plan. Meaning that it’s a meal plan. In this five days, you just eat food from that box.
[00:27:25] Dr. Z: Okay.
[00:27:25] William Hsu: There are soups in there, there are bars in there, there are multivitamins in there. There are even drinks to help preserve your lean body mass. Everything formulated, scientifically. Tested in 18 universities with our clinical trials,
[00:27:38] By the way, I just started our 42nd clinical trials.
[00:27:42] Dr. Z: Wow.
[00:27:42] William Hsu: And so there’s a lot of evidence around this safety and efficacy. Now, the whole idea is you will stay in the box for the five day. You just consume the food in there. You add water, there’s soup that you can cook up. But you wanted to give the maximum nutrition while flying under the radar. That’s the concept.
[00:28:02] It’s really difficult to substitute because if you say, well, I’m gonna just gonna drink juice. Well, the cells might recognize that there is juice, there’s sugar in there. And if the cell says, oh, there’s nutrients coming in, then it’s not gonna go into autophagy.
[00:28:16] Dr. Z: Mm-hmm.
[00:28:16] William Hsu: Say, oh yes, we’re sure on calories, but it still nutrients.
[00:28:21] So it is not just the calories, it’s the particular nutrients that’s part of this package.
[00:28:28] Dr. Z: That makes so much sense.
[00:28:29] William Hsu: Yeah. And so it makes
[00:28:30] Dr. Z: a lot of sense. Yeah.
[00:28:32] And yeah, absolutely. So maybe Dr. Z, if we have time, well, let’s go to the disease state crowd. Yeah, I was gonna say at this point, I really appreciate the thorough understanding, and I would love to, you know, at this point, land the plane and discuss metabolic health specifically.
[00:28:48] William Hsu: Yeah.
[00:28:48] Dr. Z: Heart and just see any sort of encouragement that you can give to people, that are absolutely are looking to prevent and are treat.
[00:28:55] William Hsu: Because now, you know, it’s been 25 years since the first EATS study was published. You can imagine that the 20 years of journey that professor Longo has undertaken over these two decades.
[00:29:07] Now, we know there is application of this in disease state as well. But because it works, we don’t want it to say, go and buy this online and do it yourself. And this is because safety is number one.
[00:29:21] That’s why we created this L-Nutra health program. Why a program? Because it works.
[00:29:27] That means the medication will have to be reduced. If you’re on insulin, your insulin dose will be reduced. Even stopped potentially, if you’re on multiple drugs for diabetes and for hypertension, those potentially could be mitigated through multiple cycles of Fasting Mimicking Diet.
[00:29:44] And this is why we put together a very comprehensive program. Doctor takes the lead. Dietician will hold your hand. Twice a month, in a coaching program for a course of six months if you’re interested in the Metabolic Health program, or in a 12 month Diabetes Remission and Regression program.
[00:30:04] The idea for Diabetes, Remission and Regression is really for people who say, look, I’m sick and tired of taking all these medicine. Every time I go to my doctor, my doctor just tells me to take more meds, higher dose of insulin, more injectables. This program is really aimed to activate your body’s own healing ability so that over time with multiple cycles of FMD, together with the know-how of your medical team, we can safely de-prescribe.
[00:30:33] Another word for that is deescalate your medication. So with the hope that one day your metabolic health can be restored. Free of medicine, free from the burden of diabetes. And that’s our goal.
[00:30:47] Dr. Z: I love that. And where can people learn more?
[00:30:50] William Hsu: So, if you are interesting in the Metabolic Health program or the Diabetes program, the supervised program, remember our company’s name is called L-Nutra, L dash Nutra, and that stands for Longevity through Nutrition. L dash Nutra Health. Because it’s a healthcare program. Again, L-NutraHealth.com.
[00:31:13] It’s mouthful, I know that. But this is where it really reflects the history of the company. We started out with Nutrition for longevity, and then we discover the application of this technology in healthcare that hence L-Nutra health.com.
[00:31:31] That’s where you can find this very innovative program, activate the body’s ability to heal, medically supervised program. That’s exactly right. That’s awesome.
[00:31:40] Now, for our listeners who are interested in the health and wellness and longevity there is a much easier website called prolonlife.com.
[00:31:51] That’s where you can purchase the five day Fasting Mimicking Diet kit. And this is a DIY way to get three cycles into it with the study showing two and a half years reduction in biological age. And that’s where you have two options here, depending on what your goals are.
[00:32:09] Dr. Z: Mm-hmm.
[00:32:10] William Hsu: And I think it’s important that we don’t lump it all together because there are different concerns and issues here.
[00:32:16] Dr. Z: That’s awesome. Well, I appreciate it, doc. This has been… you’ve answered a lot of questions that were even unthought of as I was going through the last 20 some years of natural health and considering fasting and looking at other alternatives. And I really appreciate this and thank you for the work.
[00:32:32] Thank you so much for everything that you’ve done and I’m really looking forward to diving deeper into this and even trying it myself. So anything else that you would like to leave the listeners with before we leave?
[00:32:43] William Hsu: I think, I just wanna encourage the listeners to take action today.
[00:32:48] A lot of us wait and say, well, I’m gonna wait until the new year. I’m gonna wait until the summer. I’m gonna wait. There’s no better time today. And, the Fasting Mimicking Diet technology makes it easier for all of us to take a step, you know, in activating our own body’s ability to heal.And we are here for you, with supervision if you have a health condition. If not, do it yourself. These are great options for you. So take a step forward.
[00:33:14] Dr. Z: I love it. I love it. Folks, this is scientific fasting that’s safe, it’s effective, it’s proven, and you can have a guiding hand, which is more than what I could have asked for 20 years ago ’cause this didn’t exist. Please, prayerfully consider taking advantage of this and check it out.
[00:33:28] And as always, this is Dr. Eric Zelinski, my hope and prayers at you and your family, truly experience an abundant life, and we’ll talk to you soon. Bye-bye.
[00:33:36] Thanks for listening to the Natural Living Family Podcast. Hope today’s conversation encouraged and challenged you to live a healthier, more abundant life. Tune in next week for another life transforming discussion.
[00:33:47] If today’s episode blessed you, please share it with a friend and leave a review. This helps more families discover the hope and healing found in God’s word. For show notes, transcripts and resources from today’s episode, visit natural living family podcast.com. And as always, this is Dr. Z. My hope and prayer is that you and your family truly experience the abundant life.
[00:34:08] God bless. Talk to you soon.
Quotable Quotes
“Modern medicine has really forgotten the fact that the body has the ability to heal.” ~ Dr. William Hsu“ Autophagy. That’s self-eating. That process. So now the cells actually survive for another day, and then more chewing of these older worn out cells for another day, yet another day.” ~ Dr. William Hsu“This is regenerative medicine at its best. Requires no drugs from the outside. It’s all built in into every cell of the body.” ~ Dr. William Hsu
“And Fasting Mimicking Diet, shown clinically to cause hepatic and blood marker change indicating reducing your biological age and disease risk.” ~ Dr. Z“So think about it, 15 days of intervention by this simulated fast we call the Fasting Mimicking Diet, is able to lower that biological age by two and a half years.” ~ Dr. William Hsu
“I could see some well-intentioned people, myself included, who don’t necessarily do the research, who ends up doing something willy-nilly. I can’t live off of a granola bar a day, you know?” ~ Dr. Z“Given that fasting for five days may not be very safe, and also very few people will be able to do that, how can we provide some nutrients that kind of fly under the radar?” ~ Dr. William Hsu
“This program is really aimed to activate your body’s own healing ability so that over time with multiple cycles of FMD, together with the know-how of your medical team, we can safely de-prescribe” ~ Dr. William Hsu“There’s no better time than today… take a step in activating your own body’s ability to heal.” ~ Dr. William Hsu
Resources Mentioned
- Dr. William Hsu | Website
- Sponsor | Prolon Fasting Mimicking Diet
- Sponsor | Bible Health Academy

