Episode Transcript
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(00:00):
If you've been wondering whethera CGM could be your holy grail
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or if it's just another healthcult initiation, buckle up.
We are about to separate thedata-driven insights from the
digital distractions.
Let's go.
Hey Rebels.
Welcome to BlasphemousNutrition.
Consider this podcast yourpantry full of clarity,
perspective, and the nuanceneeded to counter the
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superficial health advice sofreely given on the internet.
I am Amy, the unapologeticallycandid host of Blasphemous
Nutrition and a double degreednutritionist with 20 years
experience.
I'm here to share a more nuancedtake.
On living and eating well tosustain and recover your health.
If you found most health adviceto be so generic is to be
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meaningless or so extreme thatit's unrealistic.
And you don't mind theoccasional F-bomb, you've come
to the right place.
From dissecting the latestnutrition trends to breaking
down published research andsharing my own clinical
experiences, I'm on a mission tofoster clarity amidst all the
confusion and empower you tohave the health you need to live
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a life you love.
Now, let's get started.
Welcome back to BlasphemousNutrition, the podcast where we
burn diet dogma at the altar andbuild real health from its
wreckage.
My name is Aimee.
I'm a double degreed functionalnutritionist who doesn't need a
Bluetooth enad arm patch to knowthat skipping lunch and rage
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snacking at 4:00 PM might not beoptimal.
Yes, that's a clue.
Today we're digging into one ofthe trendiest new rituals of the
wellness world, continuousglucose monitors or CGMs.
CGMs have been used in clinicalpractice with diabetic patients
for many years now, but with theFDA approving direct to consumer
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use in September, 2024.
Now it seems like everyone issupporting them like they're
some kind of fashion trend.
Maybe you've seen them on yourfavorite influencers.
Maybe your cousin is wearingone.
Maybe you are wearing one rightnow and trying to decide if your
oat milk latte was a metabolicsin.
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Here's the deal.
I am definitely not anti CGM,but I am against unquestioned
obsession, really shitty scienceinterpretation and the slow
spiral from awareness intoanxiety.
All right, so what the fuck isthe CGM?
Why is everyone using one?
Let's go back to the basicsbecause not everybody listening
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is deep in the church ofbiohacking.
And even if you are, you stillmight be confused about what the
hell you're actually wearing onyour arm and what it's telling
you and what that all means.
A CGM is a small device, usuallystuck on the back of your upper
arm, and it uses a tiny, tinyfilament inserted just under the
skin to measure the glucoselevels in your interstitial
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fluid, not your blood.
In interstitial fluid every fewminutes.
Hence, the continuous part ofcontinuous glucose monitor.
It does not measure yourbloodstream directly, but rather
the surrounding fluid.
So there's a little bit of alag.
There's a little bit of nuancethere.
It's not the same number thatyou will find if you're using a
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traditional glucose monitorwhere you have to prick your
finger.
CGMs were originally designedfor people with type one
diabetes or insulin dependenttype two, so they could more
closely monitor dangerous highsand lows in their glucose and
adjust their insulinaccordingly, you know, basic
medical necessity.
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But over the last few years,CGMs have gone from a really
important clinical tool to whatmy Gen Alpha child would call
Wellness Flex.
You've got CEOs, influencers,and self-proclaimed longevity
experts slapping'em on likethey're the new.
Fitbit and there are startupcompanies pushing these$200 a
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month subscriptions to tell youthat your glucose spiked after
you ate a banana.
No shit Sherlock.
So how did we get here?
I think it's safe to say thatCGMs are a consequence of the
rise of precision nutrition.
I mean, don't get me wrong.
Individualized nutrition is 100%the future and absolutely the
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right direction to head when itcomes to health and disease
prevention.
And disease treatment for thatmatter.
But what I'm seeing with CGMsright now is less about
personalization and more aboutperfectionism in disguise.
We've turned blood sugar, whichis a normal fluctuating context
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dependent marker into some kindof metabolic morality test.
Oh no, I spiked.
Or, oh look, I'm so flat today.
I only do zone two cardiobecause it doesn't spike my
blood sugar.
So let's, let's be clear here.
Some of the stuff getting sharedon social media is total
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garbage, like what I justmentioned above, or people
demonizing potatoes or braggingthat their post meal glucose
stayed perfectly flat becausethey had no carbs and no
protein.
That's not blood sugar balance.
It's fear mongering dressed upas discipline.
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If you've been curious orattempted, or maybe you're
already logging your numbers andlow key spiraling, I want you to
stay with me.
At the end of the day.
If your health strategy has youafraid of fruit, it's no longer
a strategy.
It's a disorder with a datadashboard.
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And this is actually whathappens often when you start
tracking every blip and everybump in your blood sugar like
it's a stock ticker.
It quickly turns your awarenessinto an obsession.
Now, here's the thing.
I am a hundred percent forinformation Science is my
friend.
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And I love, I love, I love thatwe have a decent alternative to
pricking one's finger.
Data is the bomb, but only whenit's interpreted through a lens
of context and criticalthinking.
And this is where CGMs can gosideways really fast because
when you start looking at thatlittle blood sugar graph every
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couple minutes.
It stops being a tool and startsbeing a judge or a fricking
priest.
And then you gotta step into themetabolic confession booth and
beg for forgiveness.
Forgive me, father, for I havespiked.
No, no, no.
Like there's three primarydangers of metabolic
micromanagement that I tend tosee in CGM users.
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The first is hyper vigilance infood fear.
And you know it, it startsinnocent enough.
You're curious.
You wanna know what your body'sdoing.
There's nothing wrong with this.
And then.
You have a spike and it looksbad, and suddenly you're second
guessing the health attributesof quinoa.
You start avoiding certainfoods, not because they actually
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make you feel bad, but becausethey make the graph look bad.
You're checking your phone midmeal, like it's some kind of
glucose horror crux, andsuddenly you stop eating out
because you're worried that thenumbers will go up and you don't
know what's hidden in the.
Sauces and how that's gonnaaffect your glucose at that
stage.
It's no longer healthy.
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You are in a slow slide intoOrthorexia that just happens to
have a tech upgrade.
The second thing that I see isfalse equivalents because a
blood sugar rise.
Isn't inherently bad, and thatis counter to what you will see
some influencers brag about onthe internet.
So let me say this again.
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A post-meal glucose spike isnormal, it's expected, it's
physiological.
It is not a sign of metabolicdoom, but CGMs and bro science
don't be explaining that.
They just show you a line goingup and then.
Suddenly people are thinking, ohmy God, I'm, I'm doing something
wrong, or My body is completelybroken, and then they think I
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need to cut out carbs even morewrong, wrong and possibly wrong.
A spike after a balanced mealthat includes carbohydrate
normal, a spike after a donut onan empty stomach.
Still not a crisis, it's justcontext.
Your blood sugar is a dynamicsystem.
It is not supposed to be flat.
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Flatlining is not how humanbiology works.
So trying to force your glucoseto stay perfectly level at all
times.
It's like trying to keep acampfire at exactly the same
flame height, no matter how muchfuel or what kind of fuel you
throw into it.
It is completely unreasonable toexpect that, and it's also
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unnecessary to do this toachieve metabolic health.
Your blood sugar is dynamic.
It is supposed to respond.
If you eat something, it rises.
You move your body, it drops, orsometimes it spikes really high.
This causes so much panic.
In my clients just starting ACGM, when they go out for a run
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or they go to a fitness classand their blood sugar pops up,
they're like, oh my God, what'sgoing on?
Sometimes simply being stressedor sleeping like trash can
elevate your blood sugar level.
It doesn't mean you're in astate of dysfunction.
It is your body adjusting.
It's your body doing its job.
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Your blood sugar responds towhat's on your plate, how fast
you ate it, how long you sleptthe night before, how much
muscle mass you have, whether ornot you're ovulating.
Whether or not you are stressed,it responds to you being stuck
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in shitty meetings all day long.
There is about a dozen otherthings that your blood sugar
responds to that isn'taccurately reflected on your
CGM.
It's not a closed system with asingle dial.
Now if you're spiking likecrazy, if you're crashing hard
after a meal or you're walkingaround in some kind of brain
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fogged rage every day, thenyeah, we should have a
conversation.
But a post-lunch bump in yourgraft does not mean your
metabolism is failing.
It means your body is alive.
And responding.
So you gotta stop chasing flatlines like it's some kind of
prize.
Metabolic health is not achievedthrough rigid control.
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It happens through creatingadaptability.
You don't want your blood sugarto be still.
You need it to be responsive andadaptable and responsive.
Adaptable systems aren't flatlines.
They're flexible, they're messy.
They're actually ratherbrilliant just like the rest of
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your body when it is supportedinstead of micromanaged.
The last thing that I often seeis this level of reductionism, A
one number fallacy.
Some people think that as longas their blood sugar levels stay
flat, they're doing everythingright, you know, even if they're
undereating over caffeinating,skipping sleek and hanging on by
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a very thin thread emotionallyjust to get there.
If the line is flat, they thinkthey're winning.
And that's kind of like sayingyour house is fine because the
thermostat looks stable, but theroof is leaking and the
basement's on fire.
Flat glucose is not equal tothriving.
Sometimes it means you're noteating enough or you're afraid
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to.
Okay, so I probably sound likesome kind of anti-tech profit
with a vendetta against wearableglucose devices.
So let's like roll it back alittle bit.
Let me reiterate.
CGMs are not evil.
I actually use them in mypractice often.
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However, the way that they arebeing referenced in pop culture
and health culture and thesewellness cults is overhyped,
grossly under explained.
And often misused in the rightcontext with the right mindset.
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CGMs can be a really powerfultool for insight and health, and
it is awesome in thosesituations.
So let's see when it makes senseto use A CGM and how to do it
without losing your mind.
Okay, use case one.
If you have been told you haveinsulin resistance,
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pre-diabetes, or PCOS, this isthe first and most valuable use
case scenario for CGM use.
It's the original purpose of CGMfor clinical support.
If you've got legit blood sugardysregulation, and it's not just
curiosity dressed up asbiohacking, CGMs can be
incredible tools to help youimprove your glucose regulation
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and even pull yourself out ofpre-diabetes or reduce
medication dosage if you alreadyhave diabetes.
If you are in this camp.
A CGM can help you see how yourbody responds to specific meals,
how to track true highs and lowsand make targeted meaningful
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shifts that can improve yourhealth significantly without
guessing.
But even then, I recommend doingthis alongside a practitioner
because interpreting this datasolo can sometimes feel like
doing your own taxes blindfoldedwith Latin instructions.
And then knowing what to do withthe data, how to adjust your
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meals in a way that bringsglucose levels back into more
ideal ranges, and that's anothertask altogether best and most
often effectively done withguidance.
Use case two, you suspect youhave reactive hypoglycemia or
you have really intense.
Mood and energy swings aftermeals.
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CGMs can be extremely useful inhelping you connect the dots
between how you feel and whatyour blood sugar is actually
doing.
So if you're getting shaky andirritable or brain foggy within
a couple hours after eating, ifyou crash really hard in the
afternoon.
Or if you feel like a completelydifferent person, depending on
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when or what you eat.
A CGM can give you someimportant clues and insights
into whether or not your bloodsugar may be at play here.
And this is one of the raretimes when real time data can
offer you something that yourjournal or your calendar can't.
That data gathered from A CGMwill either confirm that it is a
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blood sugar issue.
Or deny it, in which case youcan start looking elsewhere.
But if it is a blood sugarissue, then you can take that
data and use it to adjust yourmeals and find your personalized
target macro ratios to preventthose spikes and crashes that
leave you feeling completelyuseless after 2:00 PM.
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Use case three is when you wanta short term experiment to build
awareness.
When used briefly, A CGM can bea fantastic learning tool.
It's a two week snapshot.
It's a metabolic audit.
Use it as a peek behind thecurtain.
But not this lifelong confessionbooth.
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And this is crucial.
If you do this, you have got togo in with guardrails.
No cutting out entire foodgroups because of a spike.
No excessive fasting just tobring the glucose down lower.
No judging your worth based upona fucking graph.
If you're someone who'striggered by tracking or you
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tend toward all or nothingthinking, a CGM may not be your
friend right now, and that'sokay.
There are so many otherresources to draw upon, and
you're much better off gettingto your goals without jumping on
the CGM bandwagon.
So big picture, CGMs can be agreat tool, but it, it's not
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your savior.
And it goes without saying thatA CGM is not a moral compass.
It's also not a diagnostic tool,and it's definitely not a
substitute for intuition orknowing what you already know
about your body to make gooddecisions.
Rather than thinking that spikesare bad, think of your blood
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sugar levels like packages in adelivery truck.
So you eat a meal, especiallyone with carbs, and your body
sends glucose into thebloodstream attached to insulin,
like a truck heading out with afresh load of Amazon packages.
The rise that you see on yourCGM is the truck leaving the
warehouse.
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Okay?
It's not a problem.
It's part of the process.
The goal's not to stop thetruck.
The goal is to make sure thetruck delivers those packages to
where they need to go.
Efficiently and in a timelymanner.
Where do they need to go To yourbrain, to your muscles, to your
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organs.
If the roads are clear, forexample, you don't have insulin
resistance.
You move regularly, you getsolid sleep, right?
Delivery is smooth.
It's all good.
But if there's a traffic jamfrom stress, sleep deprivation,
or metabolic disease, well then,yeah, deliveries get backed up.
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But that's something that we canwork on and improve with
supportive strategies.
While A CGM can offer insight,chasing flat glucose lines while
ignoring your fatigue, yourhunger, or your central nervous
system is not optimization.
It's metabolic micromanagementdressed up as healthy living.
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Okay.
I wanna kind of segue intoaddressing the unspoken elephant
in the room.
What is driving the obsessionwith CGMs?
While it is very true, I.
That there is an outrageous risein metabolic dysfunction and
diabetes across the world, andit is true that this is a
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crippling and devastatingproblem that must be addressed.
The rise of CGMs as we areseeing them, especially in the
United States and in popculture, is not just about
curiosity or even science.
I think it is ultimately aboutcontrol.
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We live in a culture thatconditions us to believe our
bodies are a problem to besolved, like being born in a
human body is some kind oforiginal sin that we have to
strive to fix and perfect.
Be it our weight, the lines onour face, or achieving those
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perfect little glucose curves.
We're sold an idea that if wetry harder, we track better, we
biohack more precisely and getup at 5:00 AM like huberin and
do 27,000 things before noon.
We would finally feel okay inour own skin we could be
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redeemed.
Enter the CGM, and here we havethe latest shiny tool, promising
clarity, certainty, andsalvation in a world full of
hormonal chaos and health.
Gaslighting.
And I get it, like when yourbody feels unpredictable, the
numbers on a graph feel likepower.
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They feel like certainty.
And you get that graph withoutthe hassle of dealing with the
healthcare system.
Holy shit, that's pretty damncool.
Right?
But here's the truth.
Wellness culture has turned selfquantification into a substitute
for self-acceptance.
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So let's break down the driversbehind this.
Okay.
When we look at what's fuelingthe obsession with CGMs, I see
four primary things.
First is the promise of control.
These websites, and you know,some influencers too, they sell
this fantasy that if you justmanage this one marker closely
enough, you're gonna unlock thebody you want.
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Health doesn't work that way.
Like you're not a spreadsheet.
You are a complex, dynamicorganism that cannot be simply
quantified.
Having the perfect glucosecurves doesn't mean weight is
automatically gonna come off, orthat you're gonna feel younger
than you have in years, but someof the ads that I see make it
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look otherwise.
The second thing is diet culturerebranded as data.
I mean, thank God we are nottracking calories anymore, but
we're tracking glucose curvesand the anxiety, the restriction
that results from that, theperfectionism.
Still the same.
I see this in clinical practiceall the time.
CGMs can quickly become a moralcompass.
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Did I spike?
Did I fail?
Like when those thoughts takeover, you've started moralizing
your biology and sliding intolegitimate disordered eating
behavior.
Number three is wellnessconsumerism.
Okay?
Let's not forget, CGMs is a bigbusiness.
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CGM wearables are predicted tobe a$5 billion market this year.
That's billion with a B, andit's expected to double in less
than a decade.
You've got startups monetizingfear and turning normal
physiology into a subscriptionservice.
They're selling you this ideathat glucose stability is the
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ultimate pinnacle of health, butyou gotta step out from that.
And remember, it's just onepiece of a much, much bigger
picture.
The ultimate reality is thathealth still comes down to the
unsexy, boring shit.
Getting enough sleep, gettingenough fiber, getting enough
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protein, moving your body, whichironically is going to do more
for your glucose managementwithout even knowing the
numbers.
And then the last one isoptimization addiction.
My God, we are just trying tooptimize the fuck out of
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everything.
And you know, I think the baseof that is that we're all being
told that being good enoughisn't enough.
You gotta optimize, you gottatrack, you gotta perfect.
We're turning our bodies and ourhealth and our wellness into
some kind of pathological stockmarket expectation of ever
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increasing benefit.
CGMs tap right into that beliefof optimizing and tracking and
making things perfect by givingyou a new number to chase.
It is a new way to fix yourself.
But what if you're not broken?
What if your blood sugar isn'tactually the problem?
What if the problem is thatyou're exhausted?
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You are under fed, you areundermuscled, and you're totally
disconnected from your body.
And your heart and what you wantfrom life.
But here's the sneaky part,right?
For, for some people, the morethey track, the less they trust
themselves.
The more we chase perfection,the more we struggle with simply
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being human.
CGMs, of course, did not createthis obsession with fixing and
perfecting, and.
Uh, trying to make ourselvessomething different than we are
has been going on for a verylong time.
But CGMs do pour some gasolineon that situation.
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So what do you do instead?
I mean, whether you're wearing aCGM right now, or you're just
kind of feeling stuck in thecycle of overthinking every damn
bite that you put in your mouth.
If you're second guessing everymeal and the graphs, the
numbers, the constant analysis,and it's leaving you confused or
worried rather than empowered,like take a deep breath.
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Here's the thing.
You do not need to control everybite you put into your mouth to
support your blood sugar.
What you need is clearstructure, consistent habits,
and the patience.
To track patterns over time.
That's where we see trends andthat's where we get valuable
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information.
So what supports metabolichealth in the real world?
Guys, I'm gonna give you theunsexy, boring shit, and it
starts with two questions atevery meal.
One, where is my produce?
Two, where is my protein?
These aren't gimmicks, right?
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These are grounding principles.
Focusing on these two questionsputs the most metabolically
supportive foods on your plate.
At every meal, they become thefoundation of a blood sugar
supportive plate.
Protein slows digestion and itblunts glucose spikes by
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triggering the release of guthormones like GLP one.
Yeah, I said it that GLP one andit also helps regulate your
appetite protein gives yourmetabolism a solid anchor to
work with and then produceespecially colorful fiber rich
vegetables.
Feed beneficial gut bacteria.
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Many of them play a direct rolein blood sugar regulation,
inflammation control, and eveninsulin sensitivity.
Did you know your veggies coulddo that I'll be talking more
about that in a later episode.
And then we have fats.
Fats slow.
The rate at which food leavesyour stomach and it helps
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regulate post-meal blood sugarlevels.
Fats are also super importantfor hormonal stability,
especially in midlife when forsome of us, those symptoms are
already in flux.
You don't need any fancygadgets, just the basics done
consistently.
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Another thing that is reallyhelpful for glucose control is
to move your body after meals.
Even a short walk after lunch ordinner can improve glucose
uptake by your muscles.
I'm talking 10 minutes here.
Don't mistake this as a need toearn your food.
A walk after a meal simplysupports your physiology.
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Movement is one of the fastestways to put those post meal
nutrients to use.
Think about it.
When you move your body, youincrease your blood flow, and
that shuttles nutrients in theblood into the cells.
But here's a bonus, A goodpost-meal walk is also fantastic
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for improving your digestion.
In fact, there's been a memegoing on right now about fart
walks.
It's totally legit.
Like fart walks are legit.
I also wanna say that you do notneed to skip meals to support
your metabolic health.
If you're using fasting as atool, it really needs to come
with structure, not just coffeeand willpower.
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Skipping meals randomlyincreases stress hormones and
makes your blood sugar harder tomanage later.
So if you're trying intermittentfasting, do it with intention.
Throw out the idea that more isbetter because it is not, and
make sure that you get enoughprotein in the meals that you
eat.
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You want to understand howintermittent fasting fits within
your life, within your body'sneeds, and not just blindly
follow somebody else's protocol.
As with everything else, more orlonger is not better in this
regard.
One thing that rarely getstalked about that's super, super
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important for metabolic healthis protecting your sleep.
One bad night of sleep cantemporarily raise your blood
sugar levels and reduce yourinsulin sensitivity.
So many, many bad nights ofsleep.
Can produce metabolicdysfunction over several years.
If you're waking up tired,you're relying too heavily on
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caffeine, you're skipping restdays, right?
You're brewing a blood sugarissue with that coffee.
Even if your CGM says otherwise,it just might not show up
immediately.
Finally to support metabolichealth, you want to build and
maintain muscle mass.
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Muscle tissue is your body'sbiggest glucose fan.
After the brain.
The more lean mass that youcarry, the more efficiently you
can use glucose and storeglucose, especially after meals.
Resistance training doesn't haveto be complicated.
It doesn't have to be crazy.
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Weightlifting at the gym,grunting and sweating with the
dudes, but it does need to bepresent.
You need to lift heavy thingsthat challenge you on a
consistent basis.
Be that inside the gym oroutside the gym, and you need to
eat enough protein to make surethat you have the essential
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tools on hand to build thatmuscle in the first place and to
keep it on your frame once youhave it.
So while none of those is nearlyas sexy as sporting A CGM this
summer, it will have youaccomplishing more and feeling
better than obsessing over yourdata.
If your current approach has youconstantly guessing, chasing
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symptoms or.
Stuck in cycles ofovercorrection, you have got to
pause and reassess whether ornot this is ultimately
worthwhile.
You don't need perfect data.
Ultimately, like you need tofind a strategy that fits within
your life and evolves with yourbody because your body is not a
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static organism.
It is changing and evolvingmoment to moment, day to day,
year to year.
And your needs will change alongwith it.
So whether you're wearing aglucose monitor or not
supporting blood sugar startswith how you build your meals,
how well you sleep, how oftenyou move.
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And how consistently you show upfor these basics.
And remember, at the end of theday, blood sugar is just one
piece of the metabolic picture.
So if something still feels off,don't ignore it, but don't
automatically assume that theproblem is you.
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Alright folks, that's it fortoday.
If you've enjoyed this episode,please like and subscribe to
Blasphemous Nutrition.
If it made you think aboutsomebody who's kind of getting
stuck in the CGM Crazy forwardthis episode to them.
Maybe I'll develop a new hateror maybe I'll find a new fan,
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who knows.
Thanks again for listening.
Stay salty, stay curious, and Iwill see you next time.
Any and all information sharedhere is for educational and
entertainment purposes only, andis not to be misconstrued as
offering medical advice.
Listening to this podcast doesnot constitute a provider client
(32:45):
relationship.
Note, I'm not a doctor nor anurse, and it is imperative that
you utilize your brain and yourmedical team to make the best
decisions for your own health.
The use of information on thispodcast or materials linked to
this podcast.
Are at the user's own risk.
No information nor resourcesprovided are intended to be a
(33:05):
substitute for professionalmedical advice, diagnosis, or
treatment.
Be a smart human and do notdisregard or postpone obtaining
medical advice for any medicalcondition you may have.
Seek the assistance of yourhealthcare team for any such
conditions and always do sobefore making any changes to
your medical, nutrition orhealth plan.