Transcript
ECIoWh3iP4c • Dark Chocolate With A Dark Side: Minimizing Heavy Metal Concerns | Dr. William Li
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Kind: captions Language: en all right chocolate lovers out there this video is for you today we're going to talk about why chocolate is actually good for your health but very importantly how do we make sense of all the information out there showing that chocolate can actually have dangerous levels of heavy metals all right uh chocolate is good for you chocolate is bad for you which one is it and how do we actually address this issue I'm going to lay it on the table because I'm a chocolate lover and tell you how I go about thinking uh about a solution all right first of all you got to know chocolate is a confection it's candy chocolate is actually made um with uh uh cacao Cacao is a plant-based food which contains polyphenols the more cacao you have in the chocolate the darker the chocolate right it's a 70% CAO 80% caca even 100% caca that's when you actually have a lot of the polyphenols from from the cacao plant plant-based one of the things that we look for uh is for healthy chocolate is the percent higher levels of cacao the more the better I always say 80% or higher is exactly what you want okay now what does H dark chocolate do for you it does a lot of things one of the most important things uh the polyphenols do is that recruits your stem cells all right that's right we all have uh stem C cells in our body they were left over when we were growing in our mom's belly in the womb and they formed our organs all right uh so when we were actually born there were extra stem cells left over about 70 million all right and they all got packed away stored away uh in our bone marrow so our bone marrow is the little uh uh spongy stuff in the middle of our bone if you ever took a chicken bone and broke it in half you would actually see that brown stuff in the middle that's bone Barrow that's packed with stem cells so uh eating chocolate the chocolate bioactives called proanthocyanidin actually calls out those stem cells uh into our bloodstream it signals to them so they come flying out of our bone marrow like bees coming out of a hive and they circulate around our blood and you know what they do they look for areas that need to be fixed like potholes in a road they're looking for where they need to patch and not just in your uh uh in your blood vessels although that's a very important place for um uh dark chocolate to have its activity the pro anthocyan is stem cells actually fixt your blood vessels but also other organs as well right the stem cells are going everywhere your brain your heart your liver your lungs everywhere so uh dark chocolate is actually a way of stimulating these stem cells to come on out in order to be able to do their thing now uh how do we know by the way that it actually works well Studies have been done where they take where they took men uh who have uh cardiovascular disease coronary Ary disease we know uh that they have uh uh ratty ragged blood vessels not good blood flow and they actually can do a test called flow mediated dilation this is basically where you see how resilient uh the blood vessels are good normal healthy blood vessels very resilient all right and ones that are uh sick uh with cardiovascular disease not so resilient so how do you study this you basically blow up a blood pressure cuff like just like in a doctor's office um and they put an ultrasound and when the blood pressure cuff is completely squeezed you're actually cutting off the blood flow all right you count one Mississippi two Mississippi three Mississippi and so on and so forth all right there's no blood flow going through then you release it suddenly and blood Jets right through the blood pressure cuff and now you take the ultrasound to measure how quickly the blood vessels uh adapt and rebound uh after the blockage all right so you have no flow all of a sudden a ton of flow okay a tsunami of blood comes out how good is your blood vessel when actually receiving that how resilient is it this is called flow mediate dilation fmd all right because the blood vessels have to dilate when more blood flow comes through and it turns out that uh studies of looked at um people who have had dark chocolate actually cacao beverage and they found that having the cacao beverage actually helps the blood vessels become more resilient because the stem cells have actually come out and fixed and repaired and regenerated the areas of the blood vessels in order to keep them as healthy and as resilient as possible all right so this is basically taking about two cups of of of hot cocoa dark chocolate uh for a month 30 days and some people are able to double the number of stem cells that come out of their blood vessels okay so we now know uh that dark chocolate is good and why it's good for us but what about this issue about heavy metals what's up with that all right remember I told you cacao uh is a plant-based uh food comes from the cacao po if you haven't seen a cacao po it kind of looks like a hard football it's a little bit skinnier than a football all right it's heavy though heavy like a football and inside are these uh uh seeds that uh uh that um get roasted and fermented those are the beans uh that goes on to actually be crushed and powderized and turned into cocoa powder and made into uh chocolate Okay plant-based all right that means that it grows out of the ground from a Cacao Tree now the cacao trees tend to grow on tropical areas especially volcanic areas and what happens in these tropical volcanic anic areas is that um there's a lot of activity geological activity and in deep inside the Earth are heavy metals all right we're surrounded by heavy metals arsenic lead cadmium scary sounding right okay you don't want them from a factory spewing it out into the air um around your house but I can tell you that that uh present in the Earth are natural amounts of these uh cadmium and lead and arsenic all right so in plants growing around volcanic areas you actually tend to have uh the roots take it up and you wind up actually having more uh in the environment and so uh uh cacao uh beans pods tend to pick up more heavy metals that's one of the reasons by the way that uh dark chocolate has these heavy metals all right another reason that heavy metals can actually accumulate is unfortunately many of these cacao plantations are in industrialized developing countries uh where they're not taking care of the environment so some of the cacao trees are near toxic dumps now you've got dust flying everywhere that's not healthy for you these toxic Metals lead and cadmium and so on and so forth and and a lot of times these cacao pods are open up and the seeds are dried right out in the open right bright sunny tropical environment drying the seeds well guess what if there's Le cadmium heavy metals in the air in the dust they might fall down onto those seeds they going to get crushed so um those are two explanations for how cacao even gets any heavy metal and although we haven't really checked yet uh if I bet if you checked many many plant-based foods that grow in those areas you'll also see uh uh heavy metals present but we now know chocolate uh products can actually have it because it was a report um uh research report done by Consumer Reports which is sort of a research group that evaluates products for quality and safety and construction and all that kind of stuff and what they did is they looked at um uh 28 chocolate bars and then 48 chocolate based products this was published a few years ago across seven categories so hot chocolate mix uh chocolate bars and even chocolate chip uh chocolate chips and what they were looking for are two heavy metals they were looking for lead all right and they were looking for cadmium and what they found is that every single product had a little bit at least a little bit of lead or cadmium now why is that important well if you have a little bit of lead or cadmium no big deal but if you continuously eat this ingest it and you start accumulating lead and cadmium into your bloodstream well it's a setup for problems uh accumulation in our tissues in our body of heavy metal metal can cause arhythmia heart problems it can interfere with the generation of red blood cells so you wind up having anemia it can interfere with your brain and cause memory loss it also can accumulate and damage your kidney as well so heavy metals nothing to joke about these are actually really concerning contaminants in our environment so what this Consumer Reports uh uh study did is take a look at all these chocolate prod products and figure out which ones actually had unacceptably high levels so I'm not going to go into um all the different uh products uh that they tested you can look them up yourself on consumer reports just go on Google and search Consumer Reports chocolate and heavy metals and you'll find that report right out there but in this report the part I want to call your attention to is that they also found chocolate products that actually had the lowest levels of heavy metal so these would be of all the chocolates the safest ones to have so let me tell you what they are the one of them is called masted organic dark chocolate 80% okay that's a safe one then coca tasa organic dark chocolate 70% that one also had low lead coca it's a cocoa then girer Deli intense dark chocolate 86% cacao all right that's a good dark chocolate 86% a lot of those polyenals and then jend Deli intense dark chocolate 72% cacao those actually leted the pack so let me go over them again hey just a quick note I wanted to share another great resource with you look I love eating seasonally when foods are in season they taste fresher their flavors are better and they have more importantly more bioactives that help your body activate your health defenses so they're better for you as well and I put together a special guide that shows you some of these Foods called three disease fighting Foods for the spring trust me these are the foods that you're going to want to put in your cart the next time you're in the grocery store or when you're at the farmers market get my guide for you right now for free in the caption below now let's get back to the video the mass organic dark chocolate 80% uh cocoa tasa organic dark chocolate 70% cacao jiren Deli intense dark chocolate 86% cacao and girer Deli intense dark intense dark 72% cacao these are the ones that were considered the safest all right they the lowest levels of both lead and cadmium in any event you shouldn't be eating too much dark chocolate anyway it's a candy like what I'm telling you and uh but these are the ones that you would actually choose now if you had to try to figure out how to even get even less go for slightly lower levels of of cacao all right so if you wind up getting um um 80% cacao which is what I generally recommend um that's actually a good level you're going to get lots of polyphenols but if you get 70% you're also you're going to get a little bit less of the bioactive but you also get less of the lead and cadmium as well all right so that's really what I would actually do to recommend on how to approach this issue of getting the benefits of dark chocolate but minimizing the dangers of of heavy metals like lead or cadmium um the other thing I tell you about dark chocolate uh my strong recommendation is to nibble on it and not to just eat the whole bar down okay like when you were a kid what I like to do when I eat my dark chocolate is I like because I like to get a bar I like to break it into pieces all right and I will have it with coffee right so this is like mocha without it mixed into the coffee I'll nibble a little bit of chocolate I'll sip a little coffee the hot coffee will kind of melt the chocolate in my mouth absolutely delici es and you get to eat it slowly so you're not really getting as much of a glucose Spike all right so that's a way to do it uh nibble on your dark chocolate uh and uh really enjoy our food is something we should enjoy I mean so many people love chocolate I don't want to actually discourage you from eating it but I think that uh this is one way for you to understand how to get the best of the dark chocolate and avoid the worst of uh the heavy metals hope you found this useful thanks for watching hi there if you enjoyed watching this video I know you'll love the next one stay here and check it out and I'll see you there