Transcript
bGL2HLOiIZs • Truth About Seed Oils: Avoid Eating This For Longevity & Use This Instead | Dr. William Li
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Kind: captions Language: en I know you're a big fan of olive oil I want to talk about olive oil and why it's so beneficial but before we get to Olive Oil in the spirit of the kind of foods that we should think about limiting when we are in our Supermarket or our grocery store and we're looking around to purchase oils to cook food in to sprinkle on food to pour on our salads what kind of oils should we try and avoid and then what sort of oil should we try and buy instead you know so this like the debate about artificial sweeteners um is a loaded topic and so I I want to just start you know this component of our conversation by saying the jury is still very much deliberating what oils are harmful to you and and are most harmful to you U but I think that it's less controversial what uh oils are better for you and good for you I want to you know for your listeners I want to kind of give people some real practical things and not just kind of dive into the science of petroleum products which is what o oils are let's talk about this rule number one regardless of what oil you actually have what I would say is don't have too much of it because oils are fats and fats can be healthier but there really isn't such a thing as a healthy fat that you should like drink lots of it every single day okay so the point is that there are healthier oils but you should we should all limit the amount of oil that we actually intake into our body all right number one number two is that and this is actually broadly speaking is don't reuse your oil okay most oils that are reused when we heat them to cook whether we're actually you know uh I mean again deep frying is generally something that's not very healthy the process of deep frying actually changes the chemical the natural chemicals that make up oil in the oil itself and then paint it onto the food stick it onto the food so we're eating some of the change chemicals when we actually eat deep Pride food now look I mean I I've had I've had some awesome fish and chips um when I visited England before um and and again and again as we talked about you know every now and then if you're you spend most of your time Shoring up your health defenses raising your own bar you know having a rare treat it's totally fine but when you fry things in hot oil you're also changing the chemical structure of things that entire Browning golden Browning crisping of food actually changes the chemical structure of the food itself and in ways that are potentially carcinogenic and so just need to be careful about that the third so so I think you know like reusing oil here's the thing that's kind of like a little risky you go to a restaurant to eat you have no idea if they're reusing your oil over and over and over again you know um I mean think about in uh Ian restaurants whether it's an Indian restaurant or a Chinese restaurant they've got these gigantic Vats where they're frying tasty little bits up um but they may be reusing that oil for days so um uh reused oil not good for you for sure and and the stuff that's fried in oil can also change in time so let's start now talking about just like the the properties of oils themselves this is where I think rather than kind of walking into the quick sand of trying to say is palm oil better than corn oil is coconut oil dangerous for you you know like we can weade into that jungle with you know but I think you need a machete to cut your way out of it and so the best way to think about it to to give Clarity is you know are there any healthier oils to use and how to use them and this is where I think olive oil really stands out number one it's part of a healthy pattern of eating that's been revered for thousands of years and that's in the Mediterranean traditional mediteranian diet and the olives are seasonal they're pressed the extra virgin olive oil contains not just fat poly monounsaturated fatty acids which are better for your body and less damaging for your cardiovascular health but there's a lot of polyphenols that come from the olive itself now a lot of people don't understand this but when you look at olive oil the reason we say extra virgin olive oil Evo you know that's what the that's what supermarkets and what restaurants are proud to use now is because it's not just fat it contains the polyphenols from the oil so if you if you were to actually by the way this is a good experiment to do for for your listeners buy a little container of Olives from your grocery store deep pitted make it easy for yourself and literally you know take it home and and take a a heavy glass or take a a board like a like a heavy cutting board and press those olives yourself and you'll actually see if you press hard enough you'll see some oil come out of it now in a in an olive oil factory I mean that that's that's so you can actually appreciate where your food comes from from where your olive oil comes from now when you actually press it you'll see that you've crushed the olives and some of the bits from the olives are actually in the olive oil the reason that olive oil tastes so good it's got that you know kind of um peppery vegetal kind of quality to it um it's got an Umami flavor it's not because the fat is flavorful it's because the bits of Olives that were crushed in there are actually in there flavoring it now those bits and the stuff that comes from the meat of the olives contain the polyphenols one of which is hydroxy tyrosol hydroxy tyrosol sounds like a very complicated chemical name you don't your listeners don't need to memorize it by any means but you should know that that comes from the olive now olive oil will have some of it only about 20% of the of it but if you actually press that Olive 80% goes into the olive water and and it's stuck in the pulp and so one of the things that I always say is that you know if you really love olive oil and you want to get the most out of it um just eat the whole Olive you know and you can actually cut up an olive and you'll get a little bit of fat you'll get all that flavor and you'll get a lot more of the polyphenol now if you're going to cook with ol olive oil I I I always say go for extra virgin because of that reason I would say don't deep fry but but you can spr you can put put some on uh to food you can actually sauté with it not too much all the studies show that about three tablespoons of olive oil that's sort of like what you probably that's around the max of what you'd want a day so nobody's drinking olive oil and then the other thing that is if you want to choose which olive oil because I get overwhelmed when I walk into a store and I see all these like a whole wall full of olive oils right everybody's marketing here's what I do again I pick up the Olive and oil and I look at the ingredients what do I look for I look for monovarietal olive oil monovarietal means it's made with just one kind of Olive and I look for the one kind of olive that that that oil is made from from three different varieties of Olive in Spain Spanish olive oil I look for pikol p i c l pyol olives among the highest in in polyphenols in the oil so the olive oil will be loaded second um Greek olive oil um the coroni olive which is from the panesis it both both of pyan Cori are very common olives so that's a good news it's not very expensive highest amount of poly one of the top three polyphenols and the third for Italian olive oil I look for um uh oil that's been pressed from a monover varial called morolo and that comes from Umbria and there that's less common harder to find a little pricier but I just gave you Three Olives uh P Cori marolo uh that are not most of them are not good eating olives but they're great for olive oil they're packed with polyphenols if you get uh olive oil that is monovarietal pressed only from each of those you can be guaranteed that you're getting sort of the top the sort of the COO tooo of the polyphenols in the olive oil yeah I love that I I actually in in my kitchen as we speak now it's the piku olive it's a Well I would have called it a single origin but that's because I'm probably used to picking coffee but as you were describing that there was such a wonderful energy in your voice and your body language it it reminded me of like a wine connoisseur talking about the different varieties of wines or a or a coffee coniss talking about that you know I get the single origin bean from this particular Farm but I guess it's not that different is it it's about going back to where does this come from how was it processed what is actually in my hand right now that I'm about to buy yeah and and you know there is great pride that we as humans have always had and it's still within us to know something about the food that is around us I mean you know uh if you talk to a farmer they are proud of what they have if you talk to a villager they're really proud of what their Community what grows around their community and again I think that you know something that maybe that we're fighting against because I I want to draw back the jargon that you raised at the beginning that I think is helpful to think about what are we what are we really fighting against you know I think we're we're fighting against our distraction from ourselves getting to know who we are and getting to know slowing down so we can actually understand our own pace we're getting distracted by the uh by the by the pace of what we're expected to do and so we've got no time for ourselves right I mean every every young working parent certainly feels that way you know like man I'm so busy I don't have time for myself and yet when it comes to Food and Health we all need to have that time for ourselves and I think we should take great pride in saying what it is that we actually love yeah a lot of people talk about the properties of vegetables of course you promote all kinds of vegetables which have different impacts on the body but some of the time we're told to sprinkle or pour some olive oil onto the vegetables because it helps us absorb nutrients from them what's your perspective on that in view of what you've just said about oil and you know perhaps not over consuming it even though it can be healthy yeah well there's two let's unpack that because there's two things that you were describing one is that in Plants let's take a tomato as a great example uh there are natural substances natural chemicals uh like lopine lopine is a carotenoid it helps to make the tomato red um it has lots and lots of healthful properties it's a powerful antioxidant I've studied lycopene in a laboratory and it actually can help starve cancers by cutting off the blood supply um it can slow the shortening of tiir to slow cellular aging and it and it to protect our DNA from even sunlight and UltraViolet exposure lots of good things about it now lopine actually is a uh uh naturally occurs in a tomato on a vine in a chemical form that our body doesn't absorb that well so if you pick a tomato off the vine and you cut it up and you throw it into a salad it might taste great just got some vitamin C in it it's a great source of hydration and great flavors okay especially if it's like a homegrown heirloom type of tomato but you're not going to get the like you're not going to get as much lopine you're probably only going to get maybe 20% of the lopine that's in there but you want it like for me I want to get as much of the good stuff as I can so here's what research has found if you wanted to convert that chemical structure of lycopene into a form that you can obsorb better your body can avidly absorb what you want to do is you want to heat the Tomato like in a pan and with the heat will change the chemical structure from a form your body doesn't absorb that well and into a form that your body avidly absorbs loves to absorb it now you go from 20% absorption to 80% absorption you flipped the you flipped it around completely upended that equation completely now you're really absorbing it now here's one additional thing though how would you heat a tomato in a pan you put heat it in water or nothing no not really you put a little bit of olive oil in it and why is that and and it's because lycopene is a substance that we call fat soluble it's a lipid loves to dissolve into fats so a little bit of olive oil in tomatoes on a pan sauteed so it's soft change the chemical structure flavors are really great now and you have that now when you uh eat that tomato sauce sauteed in olive oil the oil the olive oil with the lycopene is carried into your body even more efficiently than if it were cooked in water and so again that's an ex that's just one example of thousands of how oils with fat soluble Foods by the way if you didn't want to look at olive oil here's another common snack in the United States anyway is kind of tearing a page book from Latin American Cuisine you have these tortilla chips and then you wind up actually having salsa and guacamole the Salsa Salsa is often sort of stewed down Tomatoes cooked down Tomatoes served room temperature or chilled and then the guacamole is just avocado that's been smashed up now avocado has a lot of healthy fats in it it's it's it's a fat soluble veggie it's actually quite nutritious remarkably uh people eating avocado actually shrink their waistline because actually it even though you're eating fat it actually makes you it burns down harmful fat it's a whole other story that be had but if you have guacamole avocado with tomatoes you get more lopine and so that happens to be kind of a popular snack uh in the United States yeah I love that so the right combination of foods can actually help absorb the nutrients I think black pepper also can do that right with s and nutrients well right so black pepper so this is an interesting thing we most of us have heard that turmeric which is a kind of a a root um when you cut it open it's this bright beautiful bright orange a lovely color and and turmeric is also a dried spice used in Southeast Asian Cuisine uh including Indian Cuisine is where I first became acquainted with it it um not only makes food beautiful it actually makes food delicious it's got a quite a lovely taste to it it's a it's a spice inside turmeric is kirkin kirkin is one of those natural chemicals kind of like lopine it's one of those mother nature's Treasure Chest Mother Nature's Pharmacy with an F not a ph and the the the the the circumin has a lot of properties anti-inflammatory it's antioxidant it cuts off the blood supply feeding cancers um it uh uh actually is helpful for your stem cells as well it's it really activates almost all of your body's Health defenses and it's good for your gut microbiome so why not just you know enjoy turmeric as a spice by itself because it's so potent that our body actually doesn't absorb everything that it could in fact our body kind of it kind of gets a lot of it gets flushed out you know uh the tail end and so what we want to do to improve our body's extraction of the good um the good stuff the the termic it turns out that if you have fresh cracked black pepper all right there's a substance in fresh cracked black pepper called pierine pepperine is one of Mother Nature's um again you know these remarkable chemicals that actually influences the body and pierine helps the body hang on to the curcumin so if you have fresh cracked black pepper with your turmeric uh you you're actually creating a one punch that allows you to absorb more of the curcumin