In this educational health talk, the speaker (Dr. David Perlmutter) explains how uric acid, long overlooked in routine blood tests, functions as a central regulator of metabolism, influencing blood sugar, body weight, blood pressure, lipids, and triglycerides. He describes the evolutionary advantage of elevated uric acid in our ancestors, where it promoted fat storage and water production as a survival mechanism during food and water scarcity. The discussion links modern dietary habits—especially added sugars, fruit juice, soda, and beer (which contains purines)—to spikes in uric acid and endogenous fructose production, driving fat accumulation and metabolic disease. The speaker outlines physiological triggers of internal fructose synthesis, such as dehydration, high sodium intake, hypoxia, and sleep apnea, and notes how uric acid levels rise with age, differ between sexes, and are modulated by hormones (estrogen, testosterone). Lifestyle strategies to lower uric acid are presented, including measuring it at home, reducing added sugars, limiting beer, practicing short‑term fasting and time‑restricted eating, regular exercise, and addressing sleep apnea. The overall message is that lowering uric acid offers a powerful, actionable pathway to improve metabolic health, extend healthspan, and promote longevity.
Chapters
We now recognize that uric acid, this thing that we kind of knew about and the doctor would check and we'd forget about, is really playing a fundamental role in regulating our metabolism, our blood sugar, our body weight, our blood pressure, our lipids, our triglycerides. We never knew that before, and, you know, that might sound like really compelling science, but on the other hand, it's really empowering because when we lower this uric acid we really have— we gain a huge advantage. And, you know, for both of you and all the other people who are interested in staying healthy and in enhancing longevity and healthspan, this has become such a powerful tool. And, you know, my mission here is just to get the word out, and people can measure it on their own at home or go to the doctor's office and learn powerful strategies to bring it down very easily and very quickly. Our ancestors, both our Paleolithic ancestors and even before that, our primate ancestors, their elevation of uric acid created some wonderful things for them. Things like being near diabetic, gaining body fat, raising their blood pressure, and it may surprise many of people watching right now that I'm saying those are good things because we all do everything we can not to become insulin resistant and gain body fat and all that stuff. But back in the day, those were survival mechanisms. So through the lens of our ancestors, those were really good things. Uric acid is this powerful alarm signal telling us that we don't have food, we're not going to have food, we may not even have water. And I think it's a really interesting story because I think people get the fact that when you store body fat, that then you have calories for the times when you don't have food. We understand that could be a survival mechanism. But how does this uric acid create a situation where we're not going to become dehydrated? And it does so by the exact same mechanism, making body fat. And the, the example I like to use is there is an animal that can walk across the desert for 3 weeks and not drink any water, and it has a very unique characteristic. When you look at this animal, it has a big hump on its back. This is the camels. Yeah, and they're able to walk across the desert for weeks and weeks without drinking water because inside that hump is what? Not water— fat. And when it burns that resource, that fat resource, when any of us burn fat, we form two things: carbon dioxide, which we exhale, and water. So storing fat for all animals, including humans, is a resource against dehydration. This sugar signaling, this fructose signaling to make body fat is through the uric acid. That's how it works. Hummingbirds, birds in general, reptiles make a lot of uric acid. So do primates. Sergey, Claudia von Boeselager, so do you and I and everybody else. We all make uric acid as a survival mechanism for the times when we're not going to have food or water, and yet That's not the condition that most of us are in these days. So we're packing on the weight, the body fat, as a protection for winter that will never come. All you have to do is Google two words, uric and metabolic, and you'll see that there's research globally talking about how this simple thing, uric acid, is so profoundly related to what is causing our blood sugar to go up, what is telling our body to make fat, and even blood pressure related to elevated uric acid. So it will come. You don't want to be having sudden high concentrations of fructose like you might get from fruit juice, or certainly from soda, and from, you know, the incredible multitude of foods that are now with added sugars that are so popular at the grocery store. Eating sweet foods gave our ancestors a leg up so they could survive. And not, not helping us to any degree today. And it's through this mechanism of raising our uric acid. When we look at the worst choice for uric acid, it would be beer. Why beer? Because beer contains not only alcohol but also contains what are called purines. And purines are made— they are derived rather from the yeast that is found in brewer's yeast used to make a beer. So, you know, that's raising uric acid, increasing body fat. So we have a very good explanation now for the beer belly that is, you know, is a real thing. People that drink a lot of beer get a big belly because their bodies are making fat to prepare for winter. These are the things that are breaking down our bodies that are just, you know, leading us to age more rapidly and paving the way not only for decline in our longevity, but a decline in our healthspan, that period of time where we are still healthy and able to enjoy the life that we have. You know, some very interesting research has come out in the past 5 years that has revealed that we make fructose in our bodies. Think about that. You may be on a fructose-free program, and yet you're doing things that turn on your body's production of fructose and therefore the production, the downstream production of uric acid and threatening your metabolic health. The production of fructose from glucose happens, for example, when we are dehydrated. Why? Because fructose turns on uric acid, makes more body fat, then we have this resource to make metabolic water. Well, our bodies become dehydrated when we don't have water, or we think we're dehydrated, or our kidneys think we're dehydrated when our sodium level goes up. So our sodium level will go up when we can't drink water, uh, or when we eat a lot of salt. So this is very interesting. In other words, when you park yourself in front of the TV and start eating the pretzels, your sodium level goes up and that turns on your body's fructose production to make more body fat. Uric acid will slowly increase with age, and interestingly, uric acid levels in women are a little bit lower than they are in men until menopause. After menopause, then in women, uric acid levels go up substantially because it looks like estrogen is very helpful in terms of allowing women to excrete uric acid. And interestingly, it looks like there is at least an association between testosterone levels and elevation of uric acid. Fasting in the short run will actually raise uric acid levels, but once you complete your fast, then your uric acid levels, it will either return to where they were or will actually be a little bit better. So we're advocates of fasting. We're definitely advocating what is called time-restricted eating, which Maybe as a form of fasting, I would think, because of the incredible metabolic benefits that Dr. Satchin Panda has described being associated with the notion of not eating except for into a compressed window of number of hours of the day. Exercise is associated in an intense form with a transient increase in uric acid, but overall, generally engaging in your exercise program is something that will keep uric acid levels where they want to be— well, where you want them to be. One thing I didn't mention is that hypoxia, or having low oxygenation of your blood, can turn on fructose production. And people can experience hypoxia if they have something called sleep apnea, meaning during the night they stop breathing. They're not oxygenating their blood as well. And what does that do? Signals the body to make more fructose, make more body fat, and that threatens to even cause more sleep apnea and makes that whole process move forward in a feed-forward cycle.
