Transcript
8FPEU3ETqAg • Can Food Improve Lung Function? Yes—And Here’s Why | Dr. Li Explains
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Kind: captions Language: en welcome to Dr Lee unplugged real insights from The Cutting Edge this is a stripped Down video where I share behind the scenes insights as a scientists and as a doctor on different health and wellness topics it's raw direct unscripted no sugar coating just real talk and real science and today we're going to talk about your lungs and foods for lung Health now food is medicine is making headlines everywhere and it's important to know that whatever we're actually putting into our body can affect our lungs uh and the rest of our respiratory tract which actually starts from our nose and our mouth goes all the way down to our sinuses and then goes down uh the tubes the the bronchial and all the way down to uh to our lungs and when we're talking about the health of our lungs we're not just talking about the absence of disease our lungs have to protect themselves to stay healthy um using these hardwired Health defense systems these same Health defense systems protect our health in every part of our body but in the lung let me just tell you what they are and what do they do all right so the First Health defense is called angiogenesis it's my area that I study Ango blood blood vessel Genesis how our body grows and protects blood vessels now this is a 60,000 mile Channel throughout all of our bodies but from our lungs perspective we need a good blood flow because it's our blood that carries the oxygen that we breathe to the rest of our body and it's our blood blood in our lungs that actually expel carbon dioxide so that we can breathe in and breathe out we're going to talk about that a little bit more in a second number two second Health defense in the lung is our regenerative system we have stem cells in our lungs as well as elsewhere in our body but in our lungs our stem cells can help to repair our lungs why do we need them repaired well because you're breathing in crap all the time right think about that you're painting your room you're breathing those fumes you're um painting your f F nails or removing fingernail polish that acetone you're breathing in that's all damaging to the cells of your lungs and your lungs have to fix that and the good news is that regeneration as a health defense can help to repair your lungs from exposures the third thing is a gut microbiome now it turns out our gut microbiome which is actually not in our lungs it's actually in our gut also affects inflammation throughout our body a good healthy gut microbiome lowers inflammation including the lung which is really important and the lung itself has its own microbiome and we're just beginning to discover this this is kind of new areas of science and medicine but I think in the coming years we're going to be learning a lot more about the lung microbiome now the fourth Health defense system is our DNA protection system now DNA you you will know their DNA is our genetic code but guess what in addition to being the code that makes proteins for healthy living it turns out that our DNA is hardwired to protect itself from damage so for example when you have damaged DNA you have a mutation when you have a mutation that's a setup for Cancer all right so our DNA knows how to fix itself with its damage we can also block damage coming in like a bulletproof vest and our DNA is protected with these caps called tiir that are on the edge ends of the DNA so that as we age the tiir the protective caps start to shorten but we can actually slow that process down I'm going to talk about that a little bit uh later because that's actually good for slowing down cellular aging and the fifth and final Health defense system I'm going to talk about in your lung is your immune system now your immune system knows how to mount inflammation when there is damage trauma injury but it also knows how to turn down inflammation when we don't want uh inflammation anymore inflammation is kind of a uh first responder Cleanup Crew when there's uh debris and garbage and it's kind of like the the EMTs that show up to the sight of an accident they're they're there immediately to kind of um assess and take care of things that's what inflammation does chronic inflammation is really bad because that means that it's you're you're having uh this cleanup crew there all the time uh splashing all the cleaning agents all around you don't want that that can actually be damaging which is why chronic inflammation is so bad but our immune system naturally knows how to turn that down turn down the volume okay the other thing of course with our immune system is that it raises our immune protection to defend against viruses and bacteria now in the lung that's especially important in fact all of our Airways you know why you go into a airplane a train a bus okay inside a shopping mall uh you're breathing in all these particles uh that could be toxic um but they can also contain lots of bacteria and viruses and fungi and think about that in the winter time when you're in a crowded place and you have somebody sneezing and coughing what do you think you're doing you're breathing in those bacteria and viruses but not everybody gets sick and the reason we don't all get sick is because our lungs immune function protects us against getting sick all right these are the systems that keep your lung healthy now we're going to talk about foods that can actually help to uh enhance the protection of our lung for lung Health but before that I talked about those let me share some cool facts that you might not know about the lung so first of all your lung is actually in your chest right uh your heart's kind of in the middle slightly to the left all right and it turns out your lungs are like big vacuum cleaner bags that are lined with air pockets now these air pockets are have a name they're called Alvi and what they look like is literally they're like little soap bubbles um that are all um inside the lung soap bubbles or maybe you know like bubble wrap you know all those little air pockets in there that's what it kind of looks like all right now these little uh bubbles in the lung the alvioli provides surface area for gas exchange and if you don't know what I'm talking about let me explain it to you what gases are being exchanged in your lungs well when we breathe oxygen comes in through our nose all right right uh and our mouth when we breathe through our mouths they go right down into our lungs they go into the air sac and that's in the air sac is where the oxygen goes into our bloodstream and then our bloodstream carries it to the rest of our body all right the same time those air sacs are where carbon dioxide that comes from our blood circulates into our lungs and then and the CO2 the carbon dioxide um ex expelled so we breathe out CO2 at the same time we're breathing in uh oxygen so this is what is going on this gas exchange all right is happening every single time that we're uh breathing now you know how many uh times we inhale and exhale uh every day about 22,000 times that's a lot of uh inhale exhalation and that means that the exchange of oxygen and carbon dioxide is happening at a pretty amazing Pace at these air bubbles the Alvi in your lungs now this is important that air surface area of of the alvioli is huge it's a big area in fact the surface area of your alvioli is about 70 square m now if you're like me you're like what does that mean I have no idea what 70 square meters are so let me bring it down Earth for you 70 square meters is about the size of a tennis court all right that means that if you were to flatten out all those bubbles in your lungs that for gas exchange you'd actually form uh a shape and a size about uh the like a tennis court now how how many the these air sacks do you actually think you have in your lungs take a guess random guess more than a million yep more than 10 million yes in fact we have somewhere between 300 million and 500 million of these air sacks in our lungs all right uh which is pretty amazing when you think about how much surface area that is the tennis court and the 22,000 times that we're breathing in and breathing out hey there are you ready to use food to improve your health I Do cover a lot in my YouTube videos but there's only so much time to dive deep into how to use food as medicine that's why I created my eat to beat disease course in my course I walk you through how to use everyday foods that you can find in your grocery store to boost your body's Health defenses this is all based on my research and everything is rooted in science and I've made it super easy to follow with practical everyday tips whether you're trying to prevent disease or just want to optimize your health for longevity my e to be disease course gives you all the tools to make it real and to help you get lasting changes that will help you live longer and live better to learn more click the link below or scan the QR code on the screen I can't wait to get started together in my course now back to the video now here's another fact even though we've got two lungs you can actually function if you miss a lung if you lose a lung you even on one lung your body can run not quite as well you're not going to be running any marathons you're not going to be doing a lot of uh scuba diving or free diving all right but uh one lung can take up the the job of two lungs if you're happening to miss one of the lungs and that can actually happen sometimes people have a pneumectomy which is removing a lung or a lobectomy removing part of the lung okay another fact your lung also has its own healthy bacteria I may I I mentioned that briefly it's the lung microbiome it's this is like a new area we're still discovering uh what that all means but just like the gut microbiome this lung microbiome is probably pretty darn important and so we need to actually do more research to figure that out I'm an honest scientist so um uh when I don't know something I'm not going to I'm going to tell you that we don't know so we don't really understand what the lung microbiome does but it's probably pretty important now I also mentioned that your lungs have stem cells and our lungs can regenerate all right I think I told you you can actually repair and replace the lining on the inside but guess what if you were to snip off the top of your lung that tip will grow right back the stem cells will regenerate your lung all right so pretty important organ right it's got a lot of built-in uh mechan isms to be able to do its job but there's things that can damage our lungs all right now you know lung disease is one of the big causes of chronic uh disease uh in modern societies Right comes like after heart disease and cancer and diabetes lung diseases there way up there now some of the things that can damage your lung pollution all right air pollution and we know that our world is getting more and more polluted in fact what was pretty amazing uh was that right at the beginning of the pandemic in 2020 when everything shut down there was actually a brief moment in uh modern history where the air actually cleaned up because we weren't driving we weren't running factories and it just goes to show you how much uh you know like the everyday nature of society uh puts stuff in the air so pollution can damage your lung toxic exposures can damage your lung too I mentioned this right like if you work in a factory and you're exposed to solvents and fumes all right um that can actually have serious consequences for your lungs but even at home you might not realize this but putting on that fingernail polish taking off the fingernail polish that's a toxic exposure all right um that's acetone you're breathing it right in and normally we're painting it like this it's a really really risky Behavior actually uh to to be doing that so if you notice if you go to a nail salon the people that are actually helping to paint your nails they'll often wear a mask all right by the way the other reason they wear a mask they don't want to be breathing up the dust from your fingernails when they're doing uh your manicure as well so even dust fine dust particles can actually do that right and speaking of fine particles soot an ash in the air from wildfires for example but even campfires and fireplaces all right and even the barbecue grill when you're breathing that stuff you know the nice delicious smell from the barbecue if you're actually the person doing the grilling and you're up close in that and that smoke is coming into your face all right you're breathing in a lot of soot and Ash and all the toxins that are in there and of course smoking all right smoking we know is not good for you we know smoking causes lung disease empyema lung cancer cigarettes cigars pipes pot marijuana vaping all right all these things are introducing toxins inside our lungs you know our lungs will try to protect themselves against all those insults but you know people who are smoking or vaping uh they're doing it a lot you know uh and uh and despite your its best efforts your lung's probably not going to be able to fully protect itself against those insults okay now talk a little B about the lung talked a little bit about the things that can hurt the lung so what can we do using food as medicine to keep our lungs healthy that's the area I work on right how do we use food as medicine now our food um is is important because it can enhance our body's Health defenses including our lungs all right so I'm going to give you three simple food tips for better lung Health it's all based on Research human research okay so ready first food green tea all right I love green tea I drink green tea every single day green te um chamellia cesis okay uh has got polyphenols uh that come out from the leaves when you're steeping uh tea leaves right that's what makes the tea uh green uh and those polyphenols can activate your lungs and your whole body's Health defense systems now what's important is that uh the polyphenols and green tea can lower inflammation they're directly anti-inflammatory including in your Airways all right so if you have some inflammation I mean think think about asthma that's a pretty that's a that's a lung reaction to inflammation and Broncos spasm tea can actually relax that because there's actually some muscle relaxing in tea theop flavans all right but the other thing is it can lower inflammation itself which could be important if you're sick get a virus infection try sipping some green tea it'll actually make your Airways feel a little bit better polyphenols in green tea can also block cancer growth okay including lung cancer growth this has been studied in the laboratory and the same polyphenols in the te can actually stimulate lung regeneration for healing all right so uh lower the inflammation uh uh block the cancer uh help the lung heal itself when it when you need to all right and a study of more than 13,000 people in Korea show that those people who drank two or more cups of green tea a day were 50 % less likely to develop empyema or um uh COPD chronic obstructive pulmonary disease you probably heard about that that's like a chronic scarring of the lung where your lung function keeps on getting worse and worse basically in COPD you know those air bubbles we were talking about they start to go away you damage them and you you can't regenerate them and you have fewer and fewer and fewer of those air bubbles for gas exchange so you never feel like you're getting quite enough oxygen all right now let's talk a little bit about green tea I like to drink green tea every single day my choice of green tea is to actually have loose leaf tea this is by the way I picked this up from my parents and my relatives who uh come from Asia uh and uh you know in Asia they don't really use tea bags most of the time they use tea pots to trap the tea leaves but they're all loose leaf tea that way you can control how much tea you actually put in there all right so if you get a tea ball that will do it as well all right so I Like Glue sleeve tea if you just take a a kind of like a a small amount of loose leaf tea put it into a mug pour hot water on there and then sit back all right give it 3 to five minutes is my secret number that I use myself that'll allow the hot water to um saturate the tea leaves and then the water the polyphenols will actually come out into the tea water to flavor the water but then they're in there then when you sip it you're getting all the benefits of the flavor which I love and the polyphenols okay I don't like to use teabags number one I don't want to have this thing like hanging around um but now we know that tea bags many commercial tea bags actually Can Shed microplastics in fact one study suggested that a single tea bag and a mug of tea can shed one billion microplastic particles into the tea that's uh pretty scary kind of disgusting I wouldn't want that invisible but then you're drinking the tea it's got the good stuff in in it for you the polyphenols but guess what it's got bad stuff in there too that can cause inflammation in the body why would you want that so I don't use tea uh bags I think one of these days they're going to figure out how to make tea bags that don't shed microplastics but in the meantime loose leaf tea is a way to do it or you know get a tea ball uh or steep your tea uh and a you know and a catch something that catch the tea leaves and watch out for the cups that you're using to drink your tea right think about it plastic cups will shed microplastics styrofoam cups will shed microplastics have it in glass ceramic you know the old old school tea mug that's a good way to actually go all right now I what kind of tea I like green tea there's a lot of different kinds of green tea uh Japanese green tea CA uh uh most people don't know this but one of my favorites is jasmine tea and what people don't know is that Jasmine tea is basically Chinese green tea with Jasmine flowers that are actually rolled up and mixed with the tea leaves and now you get the floral Jasmine scent from the flowers that combine with the polyphenols in the tea it's a it's very relaxing to me and I love the flavor so you know you don't to be stuck with just one type of tea you can try different kinds of green tea now if you want the most potent green teeth when it comes to polyphenols get matcha you know matcha is that kind of super super green opaque tea if you go to a Japanese restaurant you sit at the sushi bar you order green tea they're probably going to give you matcha all right matcha actually comes as a powder doesn't come as leaves it's the whole Tea Leaf that actually gets the stems removed and then the leaves are completely ground up into that powder so you're getting every bit of the polyphenols plus you're getting the dietary fiber that comes within the leafy itself you're not steeping you're just basically ingesting the leaf that's all been powdered up now that's good for the gut microbiome which helps to lower inflammation but now you get every bit of the polyphenols all right recently there's a whole other type of tea that isn't matcha but it's powdered these are powdered teas and the way that they make these powdered teas they come in these little um paper sleeves all right these little tubes you rip off the top and you just pour tea powder into a cup put hot water in it and the whole thing dissolves now how they do this basically um at the tea Factory they're Brewing huge amounts of tea uh uh the way the way that it should be brewed it's got all the polyphenols in it then they remove all the water okay they dehydrate the tea all right and big Vats and what you're left with is this powder this powder will instantly dissolve so that's another way that I actually like it it's very convenient no mus no fuss it's a powder all right you don't have to stir anything you don't have to wait the whole thing you you know uh it will will turn will dissolve immediately into the water all right so um and by the way powdered tea uh matcha you can actually use that for cooking as well you don't have just to drink it in a mug you want to bake some muffins with it put in some cookies if you're a baker or if you want to actually put it into a stew that's an interesting way as well and here's a a creative idea for you bet you didn't think about this what about putting some tea powder into a cup of coffee now I I talk about this now water tea and coffee are the Holy Trinity of beverages when it comes to health all right if you didn't drink anything else but water tea and coffee you're actually um going to be able to survive really really well because of the polyphenols in a coffee polyphenols in a tea what about putting some powdered tea into coffee and see if you like that all right so again lots of creative ways to actually use powdered tea um and just dissolve uh the powder right into the cup all right you ready for the second food tip for lung Health eat dietary fibers eat foods with high dietary fiber lots of dietary fibers right you can eat them in vegetables and beans um and here's the reason why when you have Foods all right like produce um with dietary fiber that helps to feed your gut microbiome that's bacteria your colon about 39 trillion of them and those bacteria healthy gut bacteria release when they're well fed they releasee something called short chain fatty acids scfa sometimes if you listen to health and wellness people talk they'll call them scaas scfas they're just the the the metabolizes the things that the bacteria produce once they're well fed but the cool thing about short chain fatty acids or scaas is they're powerfully anti-inflammatory so you can actually lower inflammation everywhere in your body including in your lung now the other thing that uh fiber does is it stimulates the immune system because your gut microbiome when it's happy uh helps to groom and activate your immune system what does that do that protects you against infections for things that you might be breathing in so it enhances your protective immunity in your Airways and in your lungs protects you against infection all right and in fact a study of 1921 people across the United States showed that those people who ate more dietary fiber so fiber from their Foods mostly fruits and vegetables had better lung function than those who didn't eat um uh much fiber uh in their Foods all right so let's talk about what those foods are that are good for lung health because they contain fiber all right some of the top ones lentils chickpeas black beans okay legumes all right so now this is by the way these are very commonly uh used in Mediterranean cooking uh you can find type lentil Mediterranean or chickpea Mediterranean or black bean Mediterranean you'll find lots of recipes uh for them they're really really packed with dietary fiber okay feeds the gut microbiome lowers inflammation by helping the bacteria release short chain fatty acids what about some fruits well raspberries pound-for-pound raspberries even though they're Hollow and light are packed with lots like among all the berries the most dietary fiber guava also very good with dietary fiber and mango as well you ever try to cut a mango you'll see how much uh fiber is even soft and delicious with a lot of dietary fiber now some veggies too are really good for dietary fiber artichoke I love artichoke um uh you know just not just the hearts but also the meat on the end of the leaf brussel sprouts uh for example they have a lot of dietary fiber uh as well now there are some foods that don't seem like they should have a lot of dietary fiber because they're soft and Squishy but they actually do have a lot of dietary fiber so what's an example of that avocado avocado is good for lung health because it's got a lot of dietary fiber to feed your gut microbiome another soft squishy food mushrooms even the lowly lowly white button mushroom think about that the English breakfast you know sauté some mushrooms I would do it with a little bit of extra virgin olive oil maybe some shallots or a little bit of garlic or just olive oil all right pinch of salt just slice them up U good source of vitamin D as well all right now mushrooms soft kind of slippery packed with dietary fiber all right hey there check this out I've got a resource on the 10 foods to improve your cholesterol and it's free hey not all cholesterols created equal so in this resource I explain why maintaining a healthy balance of LDL that's lowdensity lipoprotein and HDL highdensity lipoprotein is crucial for your cardiovascular health and I tell you about the foods that you can add to your diet to help make this happen my resource it's yours right now for free in the caption below all you have to do is click on the link below the video and now back to the other video what about some other foods that I enjoy that have fiber I Love Pears especially in the uh winter time you know when they come into season uh uh figs especially dried figs are very very rich with dietary fiber you know another one that I will sometimes have all right um popcorn popcorn actually is a good source of dietary fiber now you don't want to be pouring sugar and all kinds of other things in your popcorn my latest favorite little uh kind of culinary tip um to make popcorn taste great get Rosemary you know the the herb Rosemary and spice get it ground up really really finely now you can uh you know just get a pepper uh a coffee grinder and put Rosemary in there dried rosemary and just really powderize it you sprinkle a little bit of Rosemary which has rosem marinic acid by the way which is good for brain health put you in a better mood actually sprinkle a little bit of Rosemary and popcorn man that tastes really really great all right not what you would get uh at the movie theater all right so uh so dietary fiber it's the second one third one what's the third food that we can use uh food is medicine for good lung Health well this one nobody hates and that's dark chocolate all right maybe a few people don't like dark chocolate but most people love chocolate all right now here's the thing about chocolate chocolate is a confection like the stuff you buy in a bar all right um which is a candy and it's got made in the factory and it's got all kinds of other stuff in it you got to be careful about including a lot of added sugar but dark chocolate uh has more of the plant-based cacao now Cacao is a bean that uh comes off a tree Cacao Tree all right and it's plant-based so chocolate is actually originally made from a it's originally a plant-based food the darker the chocolate the more the plant percentage is in there and guess what cacao contains a polyphenol called proanthocyanidin all right proanthocyanidin actually is a powerful anti-inflammatory substance substance good for lung health and it also improves blood flow as well and it also improves regeneration so all these things we talked about that are actually good for protecting lung function and lung Health right you want to have lower inflammation you want to have better blood flow for gas exchange and you want to be able to repair it with regeneration dark chocolate will do that in fact a study of 2,850 people in Europe showed that those people who consume the most flavonoid containing foods okay now proanthocyanidin and chocolate is a flavonoid all right and so this study included people that ate a lot of chocolate had Superior lung function better lung function all right than those people who didn't eat very many flavonoids including the flavonoids come from chocolate now remember dark chocolate has higher levels of these polyphenols the flavonoids the proanthocyanidins than milk chocolate does milk chocolate is basically some of the cacao but then you add milk in it all right um so what I tell people is that if you really want to use chocolate for health and I also like the taste of dark chocolate a little bit bitter but you know what bitter can be better and it's a It's actually kind of a maybe it's a acquir taste but I I like it a lot but here what number should you go for right you go to the grocery store and you look at or chocolate store and you'll see all these kinds there's milk chocolate there's 50% 60% 70% what percent should you actually Get Well turns out that most of the studies show that if you get 80 to 85% or higher dark chocolate that's even better so you get lots of these polyphenols chocolate polyphenols dark chocolate also has a lot of dietary fiber in fact 85% dark chocolate all right has about four gram of dietary fiber per serving that's about as much as a fig would actually a dried fig would actually have right but you didn't expect that dark chocolate so but but you also want to be careful about the amount of chocolate you have because as I said chocolate is a confection it's made with sugar there are other additives that are in there emulsifiers thickeners and you always want to look at the ingredient label to make sure that whatever that factory put in there the chocolate maker you're comfortable with make sure there's no artificial preservatives and artificial sweeteners and artificial flavors and artificial colors all those kinds of things they wind up in candy like anything that's made in a factory can actually have that so I always say even for dark chocolate please look at that ingredient label that actually will that's a that's a tell it's a it gives it away whether or not it's going to be healthy for you or maybe not so healthy now here's a practical tip dark chocolate especially 85% chocolate dark chocolate pretty bitter all right and a lot of people are very sensitive to Bitter Foods all right but so here's my little hack on how to actually use bitter chocolate dark chocolate uh and make it more palatable guess what have a square or two or three of dark chocolate 85% or higher with a cup of coffee what is chocolate plus coffee that is mocha all right tastes great uh the coffee and the chocolate they kind of play off each other it's a really really nice way to get to have dark chocolate little tip I'm sharing with you hopefully if you don't already like dark chocolate uh or you're hesitant about the darkness of the chocolate try it with some coffee now I also know that some people actually um uh have been asking me about when I talk about chocolate what about this idea that um dark chocolate might have heavy metals like cadmium or lead or arsenic those are scary things to have in your chocolate Well turns out that publication Consumer Reports actually did do a survey of like 30 different types of dark chocolate and found that some of them had way high levels of heavy metals like way higher than what's allowed all right so um since that report came out some years ago all right I think a lot of the chocolate manufacturers um scrambled to try to figure out how to get better chocolate they have better processes and so that's why I'm not calling out any particular Brands right now but you should look them up and always you know do your own research on any kind of chocolate here's the thing you need to know about heavy metals all right they're not things that the farmers are pouring into the ground but a lot the volcanic soil that uh chocolate trees like to grow in all right they like to grow like in these side volcanic uh terrain all right it turns out what do volcanoes do they're bringing in magma and lava from the center of the earth there's a lot of heavy metals in the Earth itself so this is not really thought to be Factory spillover like battery factories and stuff just chucking their uh heavy metal waste you know right onto the Chocolate Tree nope it's actually stuff that's coming naturally from the ground so here's a couple of things that are interesting for you to know it turns out that uh chocolate that comes from cacao the beans sourced from Central and South America tend to have more heavy metals because the volcanic soil in the Central and South America tend to have more heavy metals all right you got to check the the specific chocolate but chocolate made with Cacao sourc from to Africa like Ghana all right um that they produce chocolate as well um and chocolate from Asia not the most popular common places to get their chocolate they actually have less heavy metal because the soil the ground there doesn't actually have as much heavy metal as well all right so best solution is in any event do your research and eat chocolate in moderation and you should be just fine all right I mean anything we eat has some pluses and is risks and benefits you got to kind of weigh at yourself to figure out what's going to make the most sense for you but when it comes to Chocolate especially because it's a confection a candy don't eat too much of it all right uh here's a good one just take like three squares and nibble on those dark chocolate with a cup of coffee in the morning that's a great way uh to actually have the mocha I guess it would be like we' call it the um uh the dissembled uh mocha all right that's it for today on Dr Lee unplugged if you found this insightful hit the like button and of course subscribe if you want more science backed content from me all right and if you got any thoughts or questions drop them into the comments I'd love to hear from you all right and with that I will see you at the next video hey if you like that video then you're going to love this one check it out