Dhru Purohit Show - WTF? Glass Bottles Have More Microplastics Than Plastic Bottles? Before You Throw Out Your Glass Bottles, Listen to This
Episode Date: July 16, 2025This episode is brought to you by LMNT, One Skin, and Manukora Honey. If you saw the recent headlines about glass bottles and microplastics across mainstream news sources, you were probably left fe...eling confused and frustrated. With everything we already have to worry about in today’s world, it can be hard to cut through the noise and figure out what really matters. In this episode, Dhru shares his thoughts on the study, along with practical advice to stay grounded and avoid feeling overwhelmed. Today, on The Dhru Purohit Show, Dhru breaks down the viral study claiming that glass bottles contain significantly more microplastics than plastic ones. He unpacks the findings, clears up common misconceptions, and highlights the bigger picture around microplastics in our environment. He also offers simple, actionable tips to reduce exposure, encouraging curiosity and a proactive approach to health. In this episode, Dhru dives into: The shocking truth about glass bottles (0:09) A breakdown of the new microplastics study (3:09) How tiny pieces of paint end up in glass bottles (8:25) The top three things the headlines missed (12:52) Why microplastics are everywhere not just in bottled drinks (16:31) The top 10 sources of microplastics (18:53) Expert insights from Dr. Sergio Sanchez on the study (27:13) Practical ways to reduce your microplastic exposure (28:13) How to support your body’s natural detox systems (31:53) Final thoughts (33:02) Also mentioned: Try This Newsletter IEH Laboratories AquaTru Oxygen Ozone Water Filter Rorra Filter This episode is brought to you by LMNT, One Skin, and Manukora Honey. Right now, LMNT is offering my listeners a free sample pack with any purchase. Head over to drinkLMNT.com/dhru today. Right now, One Skin is offering my community 15% off; just go to oneskin.co and use coupon code DHRU to save 15% and give your skin the scientifically proven, gentle care it deserves. Upgrade to the creamiest honey, packed with antioxidants and prebiotics. Just go to manukora.com/dhru to get $25 off the Starter Kit and boost your energy, immunity, and digestive health today! Sign up for Dhru’s Try This Newsletter Learn more about your ad choices. Visit megaphone.fm/adchoices
Transcript
Discussion (0)
Hi, everyone. Drew Prode here. If you saw the viral headlines and were scratching your head,
the viral headline that said that glass bottles found to have five to 50 times as many microplastics
as plastic bottles in a shocking new study. That's a headline from the New York Post.
If you saw this study on social media, on the interwebs, on the New York Times, the New York Post,
and all the media outlets that are out there
that are great at sensationalizing studies
and it left you thinking
WTF, you're not alone.
A lot of people saw this study,
myself included and thought,
what the heck is going on?
So now what?
Glass bottles are worse than plastic?
Glass the safe choice,
the thing that so many people out there
that talk about health recommend.
Hey, if you can choose,
choose a glass bottle instead of plastic, right?
Now all of a sudden, it's not healthy for you?
Well, on today's solo episode, we're breaking this study down because we want you to understand
what this study showed and more importantly what it didn't show and how you can protect
your family with actionable information for this whole microplastic problem that we're
dealing with and plastic problem.
So many of my podcast guests have talked about the issue of plastic.
and how ubiquitous they are in our modern day and age.
And while we're not trying to drive fear in people,
we also do want to raise awareness
because it seems that every year the problem is getting worse.
And there are practical health implications
that are going on as well.
But like I said, to zoom out,
to understand how to have a sense of protection in your life
without losing your mind and being fearful of everything,
we have to understand what this study showed.
and what this study didn't.
So that's what we're going to be doing today.
We actually broke this study down in my weekly newsletter that goes out on Friday.
It's called Try This.
It has an incredible open rate, like 50, 65%.
People love it.
Over 50,000 people get this newsletter every Friday.
And it's free.
It's called Try This.
And every week, I share a few things that I'm doing to take my help to the next level.
Or I come across interesting studies like this.
And I talk to actual experts in the field about,
what we should know, what the headlines got wrong, and what we can actually pay attention to.
And also, what is worth paying attention to? We can't get freaked out about every single thing
that we hear. We have to make sure that while we're trying to protect ourselves, like in this case,
against microplastics, we doubled down on the basics that will actually move the needle forward
in our health. So if you want this newsletter, just go to try this.drew, perot. That's me, D.H.R.U.
P-U-R-O-H-I-T-com, and you can sign up for free for my weekly newsletter.
The link is in the show notes.
Okay, now back to today's solo episode, a viral study, just flipped the script on what we
thought we knew about microplastics, or so it might have seen.
Glass bottles, yes, glass, were found to contain five to 50 times, five to 50 times more
microplastics than plastic bottles.
What the f***?
But before you do.
toss your glass bottle into the recycling bin and reach for the plastic bottle, let's get into
the details and talk about this study for real, for real. So first of all, the study,
which was published in the August 2025 edition of the Journal of Food Composition and Analysis
and was done by a group of French researchers, was trying to address the growing concern that a lot
people have, not just here in America, but in other parts of the world, even in France, about what the
heck is going on in our food supply. So the researchers in France, they were going to test a few drinks.
And they did test a few drinks. They tested water, soda, iced tea, beer, and wine in glass bottles,
plastic bottles, and even cans. And the big surprise that came back, which made the headlines
everywhere. Drum roll please. The beverages in glass bottles had the highest levels of microplastics.
On average, drinks like cola and beer, right? They just weren't looking only at water.
They were doing cola, beer, soda, iced tea, and even wine. So the drinks like cola and beer,
in particular, in glass bottles, had around 100 particles per liter, while the plastic and canned
counterparts had far fewer, sometimes as little as two particles per liter. Right? So I'm setting the
stage again, imagine a group of researchers and they're testing a bunch of different bottles and they're
looking at different drinks. So you have different drinks in one side, water, soda, iced tea, beer, and wine,
and then you have different types of bottles, materials, glass, plastic, and cans. And let's paint the
picture a little bit more. So again, remember beer, wine, cola, ice tea, all in different materials. So when it came to
glass, all these beverages in glass, beer and glass topped the list with the small glass bottles
averaging 134 microplastics per liter compared to 32 microplastics of beer in a can or a large
bottle. Lemonades, which they looked at as well, had about 112 microplastics per liter. Again,
also in a glass bottle. Colas had 103 microplastics per liter and cold teas like iced tea
had about 86 microplastics per liter, and that was also in glass, remember, with far fewer
microplastics around anywhere between one to 2.5 microplastics in the plastic bottles or the
sort of aluminum cans that were all used to. Now, here's the part that everybody started freaking
out about and kind of dominated the headlines. The glass bottles of water, they had, on average,
four and a half, four point five microplastics per liter, which was 180 to 200% higher than the
plastic bottles of water, which averaged around 1.6 microplastics per liter. When people started
seeing this, they started freaking out. I actually saw some funny tweets that were out there in social
media posts. People were like, I guess I'm just going to have to drink my spit because
nothing is safe anymore and I can't drink plastic and I can't drink glass. I just guess I'm going
to swallow my spit all day, which is disgusting but also like super funny. I even saw entrepreneurs,
people like Chimapali Hopatia, who was one of the early investors and team members in Facebook.
He posted, how the hell can this happen, paraphrasing. I literally thought I was giving glass bottles
to my family and was doing something good and better than having plastic bottles of water. Now
I'm being told that I was poisoning them secretly.
I even saw people responding back saying,
we have to start our own bottled water company.
That's the only solution.
All right, well, there's a lot to say about that.
But before we do, there is a big, big, big insight
that most of the headlines missed
when they first came out,
including a lot of influencers who posted about this on social media.
The key insight that everybody missed was the microplastics
were most likely not coming from the glass itself.
They were coming from the painted metal caps that seal the bottles.
So imagine you have a glass bottle and it has a cap on top.
And these were French brands, but you have this in the United States too.
Those caps are painted and they're put on to the glass bottles,
whether it's tea, sometimes with water, whatever it might be.
And often they have a liner inside.
So it turns out that tiny flakes of paint were,
rubbing off on the caps before the drinks even hit the store shelves. And that's what was ending up
in the drink. Not glass. There's no microplastics in the glass bottle itself. It's glass. It doesn't
have plastics. That was a big part of the mystery. Now, how are those tiny flakes of paint
rubbing off and getting into the water, especially the glass water that was there? And the other
beverages too. Well, in transportation, once you paint these metal caps,
often metal, aluminum, whatever they're made out of.
When they come from the factory and they're painted, then they're fastened on to the glass bottles.
And then those bottles are transported.
They're stored in hot warehouses.
They're turned upside down.
They're dropped.
You know, well, hopefully not drop too hard because they're glass and they would break.
But basically, there's wear and tear in the transportation process.
Even if it's normal wear and tear of a truck driving with a bunch of glass bottles on it.
And the beverage kind of going up and down and brushing up against the plastic
top. And those painted metal tops that have little paint chips inside of them were flaking off,
essentially. And what happened was when the researchers in the study, when they cleaned the metal
caps, either with air or an alcohol rinse, so in the study, they would have a bunch of bottles.
When they took the glass bottles and they took the cap off and they cleaned it, they found that
the microplastics dropped more than 60%. Okay. So what does this all mean? A lot of people are saying
okay, I get it. I'm following along with this study. So does that mean that we should stop drinking from
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proven gentle care it deserves with one skin. Okay, so here's three things that the headlines
didn't tell you. Let's start off with the first one.
still beats plastic on a chemical leaching level.
So here's the thing about plastic bottles.
Plastic bottles might have fewer floating
microplastic bits.
According to this one study from France,
I'm sure if it was replicated,
we probably see something similar in the United States.
But, and this is the big butt,
they can still leach, and they do leach,
BPAs, phthalates,
and other hormone-disrupting chemicals,
especially when heat is introduced,
or they're reused.
Glass doesn't do that.
So while you might drink fewer microplastics from a plastic bottle compared to a glass bottle,
you're potentially still exposing yourself to a whole different class of toxins,
including PFAs, these forever chemicals that have contaminated all sorts of waters that are out there,
some brands a little less so.
From what I've seen, I have no affiliation with them.
Mountain Valley Springwater, which comes from a deep aquifer.
It's that bottle of glass water in a green bottle.
It scored really well, and it had very low PFAs.
Because even regular water can have PFAs, regular water in glass, and a lot of sparkling
waters.
This was a big controversy.
A lot of sparkling waters a few years ago, according to consumer reports, things like
Topochico, which is in glass, they had extraordinary high levels of PFAs inside of there.
But the key is if you're going to get plastic bottled water, which is typically not as high quality of a source,
plus the exposure to plastics and the BPAs and the thallates, etc, you're much more likely to end up with higher levels of PFAs that are there.
Okay, number two, here's what the headlines didn't tell you.
The actual microplastic amounts were still pretty low in the water.
Right.
If you saw the New York Post headline, which freaked everybody out, said glass bottles found to have five to 50 times as many microplastic,
plastics as plastic bottles in a shocking new study. So you see that. You see five to 50 times
as microplastics and you basically think your bottled water in glass has a blended up credit card
inside and you're just drinking it all day if you end up drinking a lot of water in glass.
But we have to look at the details a little bit further. Even the most contaminated glass
bottled water had just 4.5 microplastics per liter.
4.5 was the most contaminated glass bottle of water in particular, right? Not soda, not beer,
not other things, but let's just talk about water for a second. The plastic bottles of water
had 1.6 microplastics per liter. Compared to how many particles you're breathing in every day,
more on that in a second, this difference is quite small. Yes, I don't want any extra microplastics
in my food, my water, etc.
But we have to take these things into context.
So at least when it came to water,
the total microplastic count was relatively low.
Sure, the non-water beverages, like I mentioned,
soda, iced tea, and beer had on average 100 microplastics per liter,
even in glass bottles.
So that's still concerning.
Basically, though, water scored the best out of everything
and water in glass was only a little bit worse off.
Okay, number three.
takeaway that wasn't in the headlines around these studies. And I actually called an expert in this
area, who I'll chat about in a second, and asked him about this. But this isn't just about bottles.
Microplastics are everywhere, and it's a little scary, and it's definitely super annoying.
And we 100% have to do something about this. But the idea that we're going to unfairly just
pick on glass bottled water and tell everybody who's drinking occasionally, I have a
filter at home, I have a reverse osmosis filter. But when I go to the office and I have guests on this
podcast, I'll serve them water and glass. And that's still, based on everything that I've seen,
the better choice that's there. I don't have a sink in my office, unfortunately, so I don't have
the ability to put in a reverse osmosis filter. And it's just easier sometimes to have bottle water
in glass that's there. And again, I'm a fan of Mountain Valley. I have no affiliation with them,
and I usually keep that around. But the point that I was making was that some people were saying
and making fun of the fact that I had water in glass at the office, and it's like, okay, yes,
my friends are just making a joke.
But at the end of the day, it's a non-issue compared to the bigger issue.
Microplastics aren't just in drinks.
They're in our air, your dust, our food supply.
And why is that important?
Because people are freaking out about a few microplastics in our water, which they should,
but the issue is much, much bigger.
According to a study published in environmental science and technology, Americans are estimated to inhale and ingest between 74,000 and 124,000 microplastic particles per year, or roughly 200 to 330 particles every single day.
And that's just the average for breathing, not including food and other things.
And it could be more if you live in a big city like I do, like Los Angeles.
A glass of bottled water that has 4.5 microplastics is a tiny drop in the ocean to what we're all being exposed to on a daily basis through air and food.
And even though it might be a tiny drop, I want to get that drop down.
I don't want any extra exposure unnecessary, but we have to take everything into context.
And we shouldn't freak out about beverages in glass, especially water, if it's especially something occasionally that's there.
Instead, we should take diligent steps to minimize our total exposure while also acknowledging
that we're just doing the best we can in this plastic soup that we live in.
You know, I asked GROC, which is the chat CPT version that XAI launched, I asked it
for the top 10 most likely sources of microplastics for the average American and what the
source is and how much exposure they might be getting on a daily or monthly basis.
Let's go through that a little bit.
And by the way, we're going through this so that we can have content.
context, and that there's also things that we could do to reduce our exposure. So number one,
air inhalation. That's indoor dust. Synthetic fibers like polyester, tireware particles,
if you live nearby, a highway or a polluted area. So the estimate on that is about 100 to 200
particles a day, which would be a yearly exposure just through air, which is the number one source
of microplastic exposure, a yearly exposure of 35,000 to 69,000.
which seems pretty comparable to the study that I talked about in the environmental sciences and technology,
which said 74,000 to 121,000 just through breathing.
So what's the takeaway there?
Immediately getting a high-quality air filter, improving the air quality in your home,
not having as many synthetic polyester-based things, items, minimizing those.
I have some of those.
I have some clothing that fits amazing that has some polyester inside of air,
and I like it and I use it occasionally,
but I actively am looking at reducing that level that's in my house.
And having a high-quality air filter,
that's a fantastic solution as well too,
that'll trap a lot of this dust that's floating around the air.
Okay, let's look at number two, which relates to the study.
The estimate is that bottled water.
Bottled water for people who regularly have bottled water,
it doesn't specify here if it's glass or plastic.
It's probably suggesting it's plastic.
Yearly could be 4,000 to 90,000 particles that are there.
I'm sure so much variation inside of that estimate based on how high quality the water is.
A lot of water sits out there in heated warehouses for months before it comes to you at the grocery store.
It's bouncing all over the place.
I'm sure in the United States, we probably have water that has a higher level of microplastics.
But again, have a filter at home.
Reverse osmosis is a great option.
There's plenty of great ones that are out there.
And then occasionally you're out and you want to have water and glass.
Great.
And also, too, occasionally you're out.
you have a plastic bottle of water, it's not going to kill you. We have to take this in context
and make sure we double down on the basics that are there without completely upending our lives.
If I wasn't clear about that, that is the most important thing. Okay, number three, household dust
ingestion. So daily we're estimated to have about 38 to 187 particles yearly. That'd be 13,000 to
68,000. I don't know why it's separating out household dust from air inhalation. Those seem like
they're similar. Number four, this one is surprising for a lot of people. And before you quit your
glass bottle of water, this is probably something that you can swap out right away, plastic
chopping boards. The estimate is that if you use a plastic chopping board on a regular basis,
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There are a lot of restaurants that make very healthy food.
And I don't know how it is in the rest of the part of the country, but in California in particular,
I thought I understood that they cannot use wood.
They have to use plastic.
This was one of the reasons that there was a project that was launched by this entrepreneur
called PlasticList, PlasticList.org.
And on this, this entrepreneur went, his name is Nat Friedman.
He's an investor.
He was early in a bunch of different internet companies.
And he took a half a million dollars of his own.
money. And he went and he tested a lot of things that he eats on a regular basis for plastic exposure.
They weren't looking at microplastics, but they were looking at other types of things like BPA
and other things that I don't understand all the acronyms and what they mean, but a bunch of different
plasticizers. There are in common things, brands that I love that he went and tested,
whole food, sweet greens, you know, Starbucks, etc. And he was trying to see how much exposure
do a lot of these places have. What was a little bit crazy,
And people were scratching their heads when they saw this is that some of the highest scoring things on this list. And it's funny, they make you sign. They make you, you know, terms and conditions. I accept that I'm not a robot. When you go to the website, PlasticList.org, and you go into the data, I think they still have a little button that says, I'm not going to freak out when I see this data, because that's not the goal. This was more of a public service awareness project to show how ubiquitous plastics are in our food system. And,
crazy things that they found, that him and the team found. They found that things like grass-fed
beef at Whole Foods, which we're not trying to single out, had super high levels of microplastics.
And everybody's wondering, what's going on? Are the cows eating something crazy? Is it the plastic
cutting boards? It's probably a combination of a few different things. You can see some of the coverage
that we linked to in our show notes about what the study showed, not study, but public service
project showed and what it didn't show. But plastic cutting boards at restaurant.
in the house is definitely something concerning for me because of the total level of possible
microplastic exposure. And remember, if you're eating a lot of meals at home and you do some
of these basics to switch things out, that's going to be the easiest way to protect yourself.
So plastic chopping boards, yearly up to 80 million particles according to this AI platform
that we're looking at, it doesn't surprise me and it's an easy thing to switch to. You can switch to
wood, you can switch to bamboo, and there's a bunch of high quality cutting boards that are out there.
Okay, I'm not going to go through the full list here that has things like tap water,
which can still have some potential microplastics, although I've heard from a lot of the
researchers that are out there that the tap water facilities, especially in America, do a really
good job of filtering out microplastics. The problem is they don't filter out a bunch of
other that's inside of there, and you can look at your tap water and through the EWG website
and get a report of how it is in your area. Again, that's why so many people I know use a reverse
osmosis filter or high quality filter to filter out their water. And there's even
things like seafood, potentially salt, some fruits and vegetables, beer and other beverages. The goal is,
again, why I'm mentioning this is that this microplastics issue is ubiquitous. It's around us
everywhere. We really need a Manhattan-style project to address all the toxins that are in our
food system, including microplastics. But we can't just blame glass bottled water and say that's
the worst thing when there might be other things that you're doing that are lower-hanging fruits
that you could switch out.
You know, in preparation of this podcast, his solo episode, and also the newsletter that I did,
I reached out to a top expert in this field.
There's a laboratory that's called IEH Laboratories.
And there's a senior vice president that works there that I got introduced to, Dr. Sergio Sanchez,
senior vice president of IEH Laboratories.
This is a company that people and businesses use all over to study the level of plasticizers,
plastics, microplastics, exposure in their supply chain. And so he knows a thing or two about this. And when I was talking to him about this study and I was telling him, hey, you know, I'm seeing a lot of people freak out about bottled water in particular. He was the one that reminded me. He said, listen, same thing I said, this problem is ubiquitous. It's everywhere around us and we need a much bigger initiative on a national health level. Maybe that's something that, you know, the new health administration might take on at some point in time, where we have to go upstream and figure out where is this all coming from in the
food supply. But remember to tell people that there are important things that we can all do to minimize
our plastic exposure. So I'm going to tell you three of my favorites. I already give you a bonus one.
If you're using plastic cutting boards, throw that stuff away, invest in something higher. You're
probably getting a lot of plastic exposure just from that alone. So number one, filter your water at
home. Reverse osmosis typically removes 99% of microplastics. And there's great brands that are
out there. I've recommended Aquatrue. If you're based in the Southern California,
area. There's a gentleman named William that's done a lot of the households of a lot of my friends
and family. And he has a company called O2 Oxygen, we'll link to in the show notes. You know,
people say that even though I've endorsed Aquatru in the past, people say, well, Aquatru is made out of
plastic? Is there a better brand that's out there that's made out of metal? Well, I haven't tried it yet,
but it's getting a lot of steam and there's a brand called Rora. Maybe I'm pronouncing that incorrectly.
R-O-R-R-A filter, no affiliation yet. And they have a fully metal filter. It's not reverse osmosis.
but it seems like a really high quality filter.
I saw Andrew Huberman tweet about it a few months ago,
and I decided to order it and check it out.
I still have to test it and report back to you
and kind of compare it to stuff that I've used before.
But there's great brands that are out there
that can help you filter.
And when it comes to storing this water
or taking it around with you,
just use glass or steel thermases,
you know, any kind of steel thermos that's out there
that you can keep your water in.
And this is a big one.
If your bottled water lids are plastic,
I have a Yeti, I have a bunch of,
different ones that are metal, the base is metal, but the top lid is plastic, try not to heat them
or put them in the dishwasher. Just wash them by hand, because when you put them in the dishwasher,
this sheds more plastic based on all the estimates that are out there. Dr. Sanchez also, I asked
him for, is there any buying tips for water and glass if people are looking for them? And he said,
look for water that comes from a deeper aquifer. Typically, the deeper the aquifer, the less
the contaminants. So if you're going to choose bottled water, pick it up from the store,
or Whole Foods, Trader Joe's or somewhere, look for brands that use deeper aquifers.
My personal favorite, I mentioned it before, no affiliation is Mountain Valley.
And I do believe they come from a deeper aquifer that is 16,000 feet in the mountains of Arkansas.
Okay, number two, upgrade your indoor air quality, dusting, cleaning, regularly getting out dust,
opening your windows every so often.
This can radically improve your air quality, even before you get a filter, which I do have a filter in my house.
I have a couple of them.
Because the truth is that indoor air can be 300 times more polluted than outdoor air based on a study that the EPA did back in, I think, the early 90s or late 80s.
So if you can, in addition to dusting, cleaning, opening the windows, making sure that your house is clean and that dust doesn't build up.
Because even dust on your fan, in your bedroom or other places, this harbors a lot of the floating plastic particles that are there that come from our clothing or washing and drying or whatever it might be.
So if you can clean that out, it's helpful.
And if you can get a high quality hepa filter, this is super helpful because these can capture
particles that are as small as 0.3 microns, including many microplastics.
And big, big thing with your water filters, your air filters is remember to change your filters
often or when it's indicated to do that.
Having a filter on your water or having a filter on your air filter and not changing the filter,
is no bueno.
All right, this is number three,
and this is the most important one.
You know, we can read these headlines,
we can listen to this podcast,
and we can feel like doom and gloom
and just like this world is a super toxic place.
We can't get ahead.
These are important things to pay attention to,
but they are tiny in the context
of supporting your body's natural detox systems.
What do I mean by that?
Your body has its own natural detox systems.
It's not clear that it's great
at removing microplastics.
Although there are things that we can do to help with that.
And what can we do?
Whole foods.
Eating an appropriate amount of fiber seems to be something that helps get rid of toxins
inside of the gut.
Daily movement and sweating.
High quality sleep.
Sona, if you can, which there's some debates again about that excreting some levels
of BPA, but maybe not microplastics, but still, it's supporting the body's natural
detoxification process.
these basics matter more than ever.
They're not super optional in this world that we live in
that's filled with ultra-processed food
and some sprinkle of toxins on top.
We want to double down on the basics
and we don't want to fear everything else.
We want to take practical steps to minimize exposure,
throw out the plasticine cotic board.
We want to double down on the movement,
the high-quality sleep, the whole foods, the fiber,
getting our protein, supporting our body.
and treating it as the temple that it deserves to be.
I'm super glad in conclusion that this study went viral because
microplastics need more attention than ever before because the problem is just getting
worse and worse.
But but but but why I wrote the newsletter on this topic and why I wanted to make this
solo episode is because this study showed and it's not the first and it won't be the last.
It showed how easily panicked headlines can miss the full story.
The goal isn't to avoid every speck of plastic and good luck trying to do that.
It's to be informed, take smarter actions, and reduce exposure where it matters the most.
So stay curious, stay proactive, and stay hydrated from the cleanest container you can,
and double down on the basics.
If you liked this coverage of this viral study, I got more for you.
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And it features in-depth research-back, step-by-step protocols to help you take your health and my health to the next level.
Just go to try this.
Dot Drew Perrault.com.
Link in the show notes.
I hope to see you on the newsletter.
Thanks so much for tuning in.
