September 16, 2025 • 14 mins
Exogenous ketone supplements—often marketed as “ketosis in a bottle”—are exploding in popularity. But do they really deliver the metabolic benefits promised? In this episode of The Health Pulse, we cut through the hype to explore what the science actually says.
We clarify the difference between endogenous ketones (produced naturally through fasting or ketogenic diets) and exogenous ketones (taken as supplements). While supplements can temporarily raise blood ketone levels, they don’t reproduce the profound metabolic adaptations of true nutritional ketosis.
You’ll hear the latest evidence on claims around weight management, athletic performance, cognitive enhancement, and blood sugar control—and why results are often mixed or preliminary. Just as importantly, we discuss the potential risks, from digestive side effects and electrolyte imbalances to hypoglycemia in those on diabetes medications.
The key takeaway? If you’re experimenting with ketone supplements, pair them with comprehensive lab monitoring—including blood sugar, lipid profiles, and organ function—to separate fact from fiction in your own health journey.
📞 Need lab work done from the comfort of home? QLM offers fast, reliable mobile phlebotomy services—no clinic visit required.
📅 Book your appointment or learn more at:
👉 Quick Lab Mobile
📧 Contact us: info@quicklabmobile.com
💬 Enjoyed the episode? Leave us a review and let us know what topics you'd like us to cover next! Your feedback helps us bring you the content that matters most.
Disclaimer: The information provided in this podcast is for informational purposes only and should not be considered medical advice. The content discussed is based on research, expert insights, and reputable sources, but it does not replace professional medical consultation, diagnosis, or treatment. We strive to present accurate and up-to-date information, medical research is constantly evolving. Listeners should always verify details with trusted health organizations, before making any health-related decisions. If you are experiencing a medical emergency, such as severe pain, difficulty breathing, or other urgent symptoms, call your local emergency services immediately. By listening to this podcast, you acknowledge that The Health Pulse and its creators are not responsible for any actions taken based on the content of this episode. Your health and well-being should always be guided by the advice of qualified medical professionals.
Mark as Played
Transcript
Episode Transcript
Available transcripts are automatically generated. Complete accuracy is not guaranteed.
Nicolette (00:01):
Welcome to the Health Pulse, your go-to source for
quick, actionable insights onhealth, wellness and diagnostics
.
Whether you're looking tooptimize your well-being or stay
informed about the latest inmedical testing, we've got you
covered.
Join us as we break down keyhealth topics in just minutes.
Let's dive in.
Mark (00:31):
Welcome to the Deep Dive where we try to sift through all
the noise and focus on whatreally matters.
Today we're jumping intosomething that's been making
well a lot of waves in healthand performance circles.
It's this idea, this promisethat you could potentially get
the benefits of being in ketosis, you know, better focus, more
energy, maybe even help withweight, but without the really
strict diet or fasting.
Sounds almost too good to betrue, doesn't it Like a real
(00:53):
metabolic shortcut?
Rachel (00:54):
It does sound like that Absolutely, and that's exactly
where exogenous ketones comeinto the picture.
We're talking about supplementsbasically designed, or at least
marketed, to give you thatshortcut a direct path to higher
ketone levels.
Mark (01:07):
Right.
So this deep dive is all aboutthose.
We want to figure out whatthese supplements actually are,
and why are people so interested?
What does the science reallysay about whether they work?
And, maybe most importantly,are they safe and how can you
even tell if they're doinganything for you?
Our goal today is really to cutthrough some of the hype, give
you a clear picture and help youfigure out if they have a place
(01:27):
in your own health plan.
Rachel (01:29):
It's a fascinating area because that shortcut idea is so
appealing.
But maybe before we talk aboutthe shortcut, we should quickly
touch on the destination.
What is ketosis?
Mark (01:39):
Good point.
Yeah, for anyone maybe notsuper familiar, can you give us
the quick rundown on ketosisitself?
How do we normally get there?
Rachel (01:46):
Sure.
So basically, ketosis is ametabolic state where your body
shifts gears.
Instead of running primarily onglucose from carbs, it starts
burning fat as its main fuel.
When that happens, your liverproduces these molecules called
ketones.
Now, this typically happensnaturally if you're fasting for
a while, doing really longexercise or sticking to a very
(02:06):
low carb, ketogenic diet.
The ketones your body makesitself are called endogenous
ketones inside source.
Mark (02:13):
OK, endogenous made inside , so exogenous must mean from
the outside.
Rachel (02:18):
Exactly right.
Exogenous ketones are justsupplements that deliver ketone
bodies directly into your systemfrom an external source.
You swallow them, basically,instead of making your body
produce them through diet orfasting.
Mark (02:30):
Okay.
So if you're looking for thesesupplements, what forms do they
usually come in?
Are there different types?
Rachel (02:35):
Yeah, there are primarily two main types.
You'll see out there Ketonesalts and ketone esters.
Ketone salts, they're basicallyBHB that's the main ketone body
, beta-hydroxybutyrate and it'sbound to a mineral like sodium,
calcium, magnesium, potassium.
So you get ketones plus someelectrolytes.
Mark (02:51):
Okay salts and the other one esters.
Rachel (02:54):
Ketone esters.
Yeah, these are generally seenas more potent.
They tend to raise blood ketonelevels higher per dose.
You often see them used more in, say, research settings or by
elite athletes.
The downside they are prettywell known for not tasting great
.
Less palatable is the politeterm.
Mark (03:10):
Right, ok, this shortcut idea keeps coming up, but I'm
sensing a big but here.
They raise BHB levels, sure,but does that mean they fully
copy, fully replicate whathappens with nutritional ketosis
from diet?
What are the key differences?
Rachel (03:23):
And that is the crucial point to understand.
It's really important.
Think of it like this Exogenousketones are maybe like adding a
temporary booster to your caryou get a quick burst of speed,
you know.
But true nutritional ketosis,the kind from diet or fasting,
that's more like fundamentallyreengineering the engine to run
efficiently on a whole differentfuel source long term.
(03:45):
So yeah, the supplements raiseyour ketone levels temporarily,
but you often miss out on thedeeper, more sustained metabolic
shifts the body learning toburn fat efficiently, regulate
hormones differently, controlhunger better over time.
Crucially, they don't requireyou to cut carbs and the effect
is much shorter lived.
So no, they don't reproduce allthe metabolic adaptations.
(04:06):
Maybe some targeted short-termeffects, but not the whole
package.
Mark (04:09):
That's a really helpful analogy.
A booster versus a new engineMakes sense.
So clearly not a fullreplacement for a keto diet, but
people are still really drawnto them.
What are the main reasons?
What are the big claims drivingthis popularity?
Rachel (04:21):
Well, like we said, that shortcut appeal is huge.
Accessing perceived benefitswithout the strict diet is very
attractive.
Mark (04:28):
OK, let's take you some claims Weight loss and appetite
control.
That's a big one.
What's the idea there?
Rachel (04:34):
So there is some research, mostly early stuff,
suggesting they might help curbappetite.
The idea is that rising ketonelevels can signal to your brain
that you're satiated, maybereducing hunger signals, but and
this is a big but they don'treplicate the overall metabolic
state of fat burning you getfrom a true keto diet and they
definitely absolutely do notdirectly burn body fat
(04:56):
themselves.
You're still consuming calorieswhen you take them.
Mark (04:58):
Right, you're adding calories, potentially Okay.
What about athletic performance?
You hear about enduranceathletes using them.
Rachel (05:04):
Yes, that's another major area, particularly ketone
esters.
Athletes hope they mightimprove energy efficiency, give
them a sustained fuel source forlong events, and some early
studies did look promising.
But honestly, more recent,larger trials the results are
pretty mixed.
Some athletes feel a smallbenefit, others see nothing at
all.
It's definitely not aguaranteed performance boost
(05:25):
across the board.
Mark (05:26):
Okay, mixed results there.
What about brain health,cognitive function?
Ketones are brain fuel, right.
Rachel (05:32):
They are indeed an alternative fuel for the brain,
which is why there's a lot ofresearch interest, particularly
for conditions where glucosemetabolism in the brain might be
impaired, like Alzheimer's,mild cognitive impairment, even
epilepsy.
Some early findings suggestketones might offer temporary
benefits like improved mentalclarity or maybe slowing decline
(05:54):
in some patients.
It's definitely an active areaof investigation, but often in
specific groups and still quitepreliminary.
Mark (05:59):
And the last big claim area blood sugar control and
metabolic health.
Could they help stabilizethings, maybe for type 2
diabetes?
Rachel (06:08):
That's another hope.
Some people with type 2diabetes or insulin resistance
report better glucose control.
The thinking is that providingketones as an alternative fuel
might lessen the body's relianceon glucose, maybe improve
insulin sensitivity.
However, this is really an areawhere we lack long-term data.
We just don't know thesustained effects yet.
It needs much more research.
Mark (06:26):
So it sounds like a pattern Some intriguing
possibilities, some earlypositive signals, but also a lot
of nuance and missing long-termevidence.
People are hoping for thebenefits of ketosis, but whether
the supplements deliver thesame thing is well still up in
the air, which brings usinevitably to the risks, if
they're not a perfect mimic.
What are the downsides?
(06:46):
Are they generally safe?
Rachel (06:49):
Generally for healthy adults, using them occasionally
is considered safe butoccasionally is the key word
there and there are definitelypotential drawbacks and risks,
especially if used regularly orin high doses.
Okay, let's get into those.
What's the most commoncomplaint?
People have nausea, sometimesdiarrhea, stomach cramps,
(07:11):
especially if you take too muchtoo fast.
And the ketone saltsspecifically because of the
minerals, they can also causenoticeable bloating for some
people.
Mark (07:19):
You mentioned the minerals in the salts.
That makes me think aboutelectrolytes.
Is electrolyte imbalance a realrisk?
Rachel (07:25):
It absolutely is a valid concern, Because you're
delivering a load of mineralssodium, calcium, magnesium,
potassium.
Frequent or high doses candisrupt your body's electrolyte
balance, and this isparticularly worrying for anyone
with pre-existing kidneyproblems or heart conditions,
where keeping electrolytesstable is critical.
Mark (07:44):
That sounds quite serious.
What about blood sugar?
You said they might helpstabilize it.
But is there a risk too?
Rachel (07:49):
Yes, and this is super important, exogenous ketones can
actually lower blood glucoselevels.
Now, for someone with diabeteswho is taking insulin or other
glucose lowering medications,this is a big deal.
It significantly increases therisk of hypoglycemia dangerously
low blood sugar if they don'tmonitor very closely and work
with their doctor to potentiallyadjust medications.
(08:10):
It's not something to guesswith.
Mark (08:12):
Definitely requires caution and medical oversight
there.
Okay, let's circle back toweight loss.
You said they don't requirecutting carbs.
How does that affect fat loss?
Rachel (08:21):
Right.
Unlike nutritional ketosis,where your body shifts to
burning its own fat storesbecause carbs are restricted,
these supplements don't forcethat shift.
They don't require carbrestriction and they don't
directly make you burn more bodyfat.
So, while they might slightlysuppress appetite for a bit,
relying on them alone forsignificant, lasting weight loss
, that often leads tounrealistic expectations.
Mark (08:44):
That's a crucial distinction.
And what about the long view?
What do we know about usingthese supplements long term?
Rachel (08:49):
That's the big unknown, really.
Most of the studies we have areshort term weeks, maybe a few
months.
The long term effects on yourmetabolism, on cardiovascular
health, on kidney function overyears, we just don't have that
data yet.
It's largely uncertainterritory.
Mark (09:05):
Okay.
So given all these potentialrisks the GI issues, the
electrolytes, the blood sugarconcerns, the lack of clear fat
loss benefit and the unknownlong-term effects it seems
pretty obvious that just takingthese and hoping for the best
isn't the smartest approach.
Which leads us to testing.
Why is lab testing so criticalif you're considering using
these?
How do you separate hype fromreality safely?
Rachel (09:26):
Lab testing is absolutely essential.
I can't stress that enough.
It's really the only objectiveway to see what's actually
happening inside your body.
Are they working as intended?
Are they causing issues?
Supplements can shift thingsmetabolically in ways you might
not expect, especially, as we'vesaid, if you have underlying
conditions like diabetes,metabolic syndrome or heart
disease risk factors.
(09:47):
Testing provides that crucialinsight and safety check.
Mark (09:51):
Okay.
So just seeing your ketonelevels go up on a finger prick
isn't enough.
What other specific tests giveyou the real health picture?
Rachel (10:04):
Right.
Confirming ketone elevation isstep one.
You want to measure blood BHBto see if you're hitting that
typical nutritional ketosisrange maybe 0.5 to 3.0
millimoles per liter, but beyondthat you need a broader look.
Mark (10:12):
Like what specifically?
Rachel (10:13):
You definitely want to track fasting glucose and your
HbA1c.
That shows the impact on bloodsugar control over time, not
just in the moment, and alsofasting insulin and calculating
HbI-R.
These give you a really goodidea about your insulin
sensitivity.
Is it improving, getting worse,staying the same?
Mark (10:29):
Makes sense.
What about heart health markers?
Rachel (10:32):
Absolutely.
A full lipid panel is important.
Ldl, hdl, triglycerides, butI'd especially emphasize getting
ApoB measured.
Apob basically counts thenumber of potentially
artery-clogging particles.
It gives a clearer picture ofcardiovascular risk than just
LDL cholesterol alone.
And finally kidney and liverfunction tests Just to make sure
(10:52):
your body is handling the extramineral load from salts, if
you're using those andprocessing everything okay
without undue stress.
Mark (11:00):
That's a pretty comprehensive list.
It sounds like potentially alot of trips to the lab which
can be a barrier for people.
Is it getting any easier totrack this stuff?
Rachel (11:08):
Thankfully.
Yes, it is becoming moreconvenient.
There are services now, likeQuickLab Mobile, for instance,
here in Miami, that offer mobilephlebotomy.
They can come to your home oroffice to draw the blood sample.
That makes it much easier tostay on top of tracking these
markers regularly without addinga lot of extra hassle to your
schedule.
More accessible monitoring iskey.
Mark (11:27):
Okay, this has been incredibly helpful, really
clarifying a complex topic that,let's face it, is surrounded by
a lot of marketing noise.
If we were to boil it all down,what's the main takeaway
message you'd want listeners tohave?
Rachel (11:40):
I think the core message is that exogenous ketones are
well, they're scientificallyinteresting.
They show us possibilities forinfluencing metabolism.
They can quickly raise bloodketone levels and that might
offer some situational supportfor energy, maybe focus, perhaps
glucose stability.
Mark (11:58):
But there's always a but.
They aren't the magic solutionor a full replacement right.
Rachel (12:02):
Absolutely not.
That's critical.
They are not a replacement forthe deep, sustained metabolic
benefits you get from actuallychanging your diet, like with a
well-formulated ketogenicapproach, or from practices like
fasting or just fundamentallifestyle habits eating whole
foods, moving your body, thosedeeper adaptations, that engine
re-engineering we talked about.
You don't get the full scope ofthat from a supplement alone.
Mark (12:23):
And where does the science currently stand?
Overall, ready for everyone.
Rachel (12:27):
I'd say for some athletes, maybe some niche
situations, they could offer anedge and perhaps down the line,
for certain medical conditionsthey might become part of a
doctor-managed plan.
But right now the science isstill pretty early stage.
The results are quite mixed,honestly, and, like we
emphasized, the long-term safetyprofile just isn't established
yet.
Mark (12:46):
That's a very balanced perspective.
So for our listener, who mightbe thinking okay, should I try
these?
What's the final thought, themost important thing to consider
?
Rachel (12:55):
My final thought, maybe a provocative one for you to
chew on, is this If you areconsidering experimenting with
exogenous ketones, please don'tdo it blind.
The single, most important,most responsible thing you can
do is pair that experiment withproper lab testing and guidance
from your healthcare provider,actually tracking your blood
sugar, your real ketone levels,your lipids, your kidney
(13:16):
function.
That's how you know if they'retruly helping your specific
goals or if they might becausing harm you can't feel.
Yet.
It really comes down to makinginformed choices based on your
own body's data, not just basedon hype or hope.
Mark (13:29):
Know thyself through data.
That's a powerful takeaway.
Thank you so much for breakingall that down for us.
Hopefully, this deep dive helpsall of you make more informed
decisions on your own healthjourneys.
Nicolette (13:45):
Thanks for tuning into the Health Pulse.
If you found this episodehelpful, don't forget to
subscribe and share it withsomeone who might benefit.
For more health insights anddiagnostics, visit us online at
wwwquicklabmobilecom.
Stay informed, stay healthy andwe'll catch you in the next
episode.
Welcome to the Health Pulse, your go-to source for
quick, actionable insights onhealth, wellness and diagnostics
.
Whether you're looking tooptimize your well-being or stay
informed about the latest inmedical testing, we've got you
covered.
Join us as we break down keyhealth topics in just minutes.
Let's dive in.
Mark (00:31):
Welcome to the Deep Dive where we try to sift through all
the noise and focus on whatreally matters.
Today we're jumping intosomething that's been making
well a lot of waves in healthand performance circles.
It's this idea, this promisethat you could potentially get
the benefits of being in ketosis, you know, better focus, more
energy, maybe even help withweight, but without the really
strict diet or fasting.
Sounds almost too good to betrue, doesn't it Like a real
(00:53):
metabolic shortcut?
Rachel (00:54):
It does sound like that Absolutely, and that's exactly
where exogenous ketones comeinto the picture.
We're talking about supplementsbasically designed, or at least
marketed, to give you thatshortcut a direct path to higher
ketone levels.
Mark (01:07):
Right.
So this deep dive is all aboutthose.
We want to figure out whatthese supplements actually are,
and why are people so interested?
What does the science reallysay about whether they work?
And, maybe most importantly,are they safe and how can you
even tell if they're doinganything for you?
Our goal today is really to cutthrough some of the hype, give
you a clear picture and help youfigure out if they have a place
(01:27):
in your own health plan.
Rachel (01:29):
It's a fascinating area because that shortcut idea is so
appealing.
But maybe before we talk aboutthe shortcut, we should quickly
touch on the destination.
What is ketosis?
Mark (01:39):
Good point.
Yeah, for anyone maybe notsuper familiar, can you give us
the quick rundown on ketosisitself?
How do we normally get there?
Rachel (01:46):
Sure.
So basically, ketosis is ametabolic state where your body
shifts gears.
Instead of running primarily onglucose from carbs, it starts
burning fat as its main fuel.
When that happens, your liverproduces these molecules called
ketones.
Now, this typically happensnaturally if you're fasting for
a while, doing really longexercise or sticking to a very
(02:06):
low carb, ketogenic diet.
The ketones your body makesitself are called endogenous
ketones inside source.
Mark (02:13):
OK, endogenous made inside , so exogenous must mean from
the outside.
Rachel (02:18):
Exactly right.
Exogenous ketones are justsupplements that deliver ketone
bodies directly into your systemfrom an external source.
You swallow them, basically,instead of making your body
produce them through diet orfasting.
Mark (02:30):
Okay.
So if you're looking for thesesupplements, what forms do they
usually come in?
Are there different types?
Rachel (02:35):
Yeah, there are primarily two main types.
You'll see out there Ketonesalts and ketone esters.
Ketone salts, they're basicallyBHB that's the main ketone body
, beta-hydroxybutyrate and it'sbound to a mineral like sodium,
calcium, magnesium, potassium.
So you get ketones plus someelectrolytes.
Mark (02:51):
Okay salts and the other one esters.
Rachel (02:54):
Ketone esters.
Yeah, these are generally seenas more potent.
They tend to raise blood ketonelevels higher per dose.
You often see them used more in, say, research settings or by
elite athletes.
The downside they are prettywell known for not tasting great
.
Less palatable is the politeterm.
Mark (03:10):
Right, ok, this shortcut idea keeps coming up, but I'm
sensing a big but here.
They raise BHB levels, sure,but does that mean they fully
copy, fully replicate whathappens with nutritional ketosis
from diet?
What are the key differences?
Rachel (03:23):
And that is the crucial point to understand.
It's really important.
Think of it like this Exogenousketones are maybe like adding a
temporary booster to your caryou get a quick burst of speed,
you know.
But true nutritional ketosis,the kind from diet or fasting,
that's more like fundamentallyreengineering the engine to run
efficiently on a whole differentfuel source long term.
(03:45):
So yeah, the supplements raiseyour ketone levels temporarily,
but you often miss out on thedeeper, more sustained metabolic
shifts the body learning toburn fat efficiently, regulate
hormones differently, controlhunger better over time.
Crucially, they don't requireyou to cut carbs and the effect
is much shorter lived.
So no, they don't reproduce allthe metabolic adaptations.
(04:06):
Maybe some targeted short-termeffects, but not the whole
package.
Mark (04:09):
That's a really helpful analogy.
A booster versus a new engineMakes sense.
So clearly not a fullreplacement for a keto diet, but
people are still really drawnto them.
What are the main reasons?
What are the big claims drivingthis popularity?
Rachel (04:21):
Well, like we said, that shortcut appeal is huge.
Accessing perceived benefitswithout the strict diet is very
attractive.
Mark (04:28):
OK, let's take you some claims Weight loss and appetite
control.
That's a big one.
What's the idea there?
Rachel (04:34):
So there is some research, mostly early stuff,
suggesting they might help curbappetite.
The idea is that rising ketonelevels can signal to your brain
that you're satiated, maybereducing hunger signals, but and
this is a big but they don'treplicate the overall metabolic
state of fat burning you getfrom a true keto diet and they
definitely absolutely do notdirectly burn body fat
(04:56):
themselves.
You're still consuming calorieswhen you take them.
Mark (04:58):
Right, you're adding calories, potentially Okay.
What about athletic performance?
You hear about enduranceathletes using them.
Rachel (05:04):
Yes, that's another major area, particularly ketone
esters.
Athletes hope they mightimprove energy efficiency, give
them a sustained fuel source forlong events, and some early
studies did look promising.
But honestly, more recent,larger trials the results are
pretty mixed.
Some athletes feel a smallbenefit, others see nothing at
all.
It's definitely not aguaranteed performance boost
(05:25):
across the board.
Mark (05:26):
Okay, mixed results there.
What about brain health,cognitive function?
Ketones are brain fuel, right.
Rachel (05:32):
They are indeed an alternative fuel for the brain,
which is why there's a lot ofresearch interest, particularly
for conditions where glucosemetabolism in the brain might be
impaired, like Alzheimer's,mild cognitive impairment, even
epilepsy.
Some early findings suggestketones might offer temporary
benefits like improved mentalclarity or maybe slowing decline
(05:54):
in some patients.
It's definitely an active areaof investigation, but often in
specific groups and still quitepreliminary.
Mark (05:59):
And the last big claim area blood sugar control and
metabolic health.
Could they help stabilizethings, maybe for type 2
diabetes?
Rachel (06:08):
That's another hope.
Some people with type 2diabetes or insulin resistance
report better glucose control.
The thinking is that providingketones as an alternative fuel
might lessen the body's relianceon glucose, maybe improve
insulin sensitivity.
However, this is really an areawhere we lack long-term data.
We just don't know thesustained effects yet.
It needs much more research.
Mark (06:26):
So it sounds like a pattern Some intriguing
possibilities, some earlypositive signals, but also a lot
of nuance and missing long-termevidence.
People are hoping for thebenefits of ketosis, but whether
the supplements deliver thesame thing is well still up in
the air, which brings usinevitably to the risks, if
they're not a perfect mimic.
What are the downsides?
(06:46):
Are they generally safe?
Rachel (06:49):
Generally for healthy adults, using them occasionally
is considered safe butoccasionally is the key word
there and there are definitelypotential drawbacks and risks,
especially if used regularly orin high doses.
Okay, let's get into those.
What's the most commoncomplaint?
People have nausea, sometimesdiarrhea, stomach cramps,
(07:11):
especially if you take too muchtoo fast.
And the ketone saltsspecifically because of the
minerals, they can also causenoticeable bloating for some
people.
Mark (07:19):
You mentioned the minerals in the salts.
That makes me think aboutelectrolytes.
Is electrolyte imbalance a realrisk?
Rachel (07:25):
It absolutely is a valid concern, Because you're
delivering a load of mineralssodium, calcium, magnesium,
potassium.
Frequent or high doses candisrupt your body's electrolyte
balance, and this isparticularly worrying for anyone
with pre-existing kidneyproblems or heart conditions,
where keeping electrolytesstable is critical.
Mark (07:44):
That sounds quite serious.
What about blood sugar?
You said they might helpstabilize it.
But is there a risk too?
Rachel (07:49):
Yes, and this is super important, exogenous ketones can
actually lower blood glucoselevels.
Now, for someone with diabeteswho is taking insulin or other
glucose lowering medications,this is a big deal.
It significantly increases therisk of hypoglycemia dangerously
low blood sugar if they don'tmonitor very closely and work
with their doctor to potentiallyadjust medications.
(08:10):
It's not something to guesswith.
Mark (08:12):
Definitely requires caution and medical oversight
there.
Okay, let's circle back toweight loss.
You said they don't requirecutting carbs.
How does that affect fat loss?
Rachel (08:21):
Right.
Unlike nutritional ketosis,where your body shifts to
burning its own fat storesbecause carbs are restricted,
these supplements don't forcethat shift.
They don't require carbrestriction and they don't
directly make you burn more bodyfat.
So, while they might slightlysuppress appetite for a bit,
relying on them alone forsignificant, lasting weight loss
, that often leads tounrealistic expectations.
Mark (08:44):
That's a crucial distinction.
And what about the long view?
What do we know about usingthese supplements long term?
Rachel (08:49):
That's the big unknown, really.
Most of the studies we have areshort term weeks, maybe a few
months.
The long term effects on yourmetabolism, on cardiovascular
health, on kidney function overyears, we just don't have that
data yet.
It's largely uncertainterritory.
Mark (09:05):
Okay.
So given all these potentialrisks the GI issues, the
electrolytes, the blood sugarconcerns, the lack of clear fat
loss benefit and the unknownlong-term effects it seems
pretty obvious that just takingthese and hoping for the best
isn't the smartest approach.
Which leads us to testing.
Why is lab testing so criticalif you're considering using
these?
How do you separate hype fromreality safely?
Rachel (09:26):
Lab testing is absolutely essential.
I can't stress that enough.
It's really the only objectiveway to see what's actually
happening inside your body.
Are they working as intended?
Are they causing issues?
Supplements can shift thingsmetabolically in ways you might
not expect, especially, as we'vesaid, if you have underlying
conditions like diabetes,metabolic syndrome or heart
disease risk factors.
(09:47):
Testing provides that crucialinsight and safety check.
Mark (09:51):
Okay.
So just seeing your ketonelevels go up on a finger prick
isn't enough.
What other specific tests giveyou the real health picture?
Rachel (10:04):
Right.
Confirming ketone elevation isstep one.
You want to measure blood BHBto see if you're hitting that
typical nutritional ketosisrange maybe 0.5 to 3.0
millimoles per liter, but beyondthat you need a broader look.
Mark (10:12):
Like what specifically?
Rachel (10:13):
You definitely want to track fasting glucose and your
HbA1c.
That shows the impact on bloodsugar control over time, not
just in the moment, and alsofasting insulin and calculating
HbI-R.
These give you a really goodidea about your insulin
sensitivity.
Is it improving, getting worse,staying the same?
Mark (10:29):
Makes sense.
What about heart health markers?
Rachel (10:32):
Absolutely.
A full lipid panel is important.
Ldl, hdl, triglycerides, butI'd especially emphasize getting
ApoB measured.
Apob basically counts thenumber of potentially
artery-clogging particles.
It gives a clearer picture ofcardiovascular risk than just
LDL cholesterol alone.
And finally kidney and liverfunction tests Just to make sure
(10:52):
your body is handling the extramineral load from salts, if
you're using those andprocessing everything okay
without undue stress.
Mark (11:00):
That's a pretty comprehensive list.
It sounds like potentially alot of trips to the lab which
can be a barrier for people.
Is it getting any easier totrack this stuff?
Rachel (11:08):
Thankfully.
Yes, it is becoming moreconvenient.
There are services now, likeQuickLab Mobile, for instance,
here in Miami, that offer mobilephlebotomy.
They can come to your home oroffice to draw the blood sample.
That makes it much easier tostay on top of tracking these
markers regularly without addinga lot of extra hassle to your
schedule.
More accessible monitoring iskey.
Mark (11:27):
Okay, this has been incredibly helpful, really
clarifying a complex topic that,let's face it, is surrounded by
a lot of marketing noise.
If we were to boil it all down,what's the main takeaway
message you'd want listeners tohave?
Rachel (11:40):
I think the core message is that exogenous ketones are
well, they're scientificallyinteresting.
They show us possibilities forinfluencing metabolism.
They can quickly raise bloodketone levels and that might
offer some situational supportfor energy, maybe focus, perhaps
glucose stability.
Mark (11:58):
But there's always a but.
They aren't the magic solutionor a full replacement right.
Rachel (12:02):
Absolutely not.
That's critical.
They are not a replacement forthe deep, sustained metabolic
benefits you get from actuallychanging your diet, like with a
well-formulated ketogenicapproach, or from practices like
fasting or just fundamentallifestyle habits eating whole
foods, moving your body, thosedeeper adaptations, that engine
re-engineering we talked about.
You don't get the full scope ofthat from a supplement alone.
Mark (12:23):
And where does the science currently stand?
Overall, ready for everyone.
Rachel (12:27):
I'd say for some athletes, maybe some niche
situations, they could offer anedge and perhaps down the line,
for certain medical conditionsthey might become part of a
doctor-managed plan.
But right now the science isstill pretty early stage.
The results are quite mixed,honestly, and, like we
emphasized, the long-term safetyprofile just isn't established
yet.
Mark (12:46):
That's a very balanced perspective.
So for our listener, who mightbe thinking okay, should I try
these?
What's the final thought, themost important thing to consider
?
Rachel (12:55):
My final thought, maybe a provocative one for you to
chew on, is this If you areconsidering experimenting with
exogenous ketones, please don'tdo it blind.
The single, most important,most responsible thing you can
do is pair that experiment withproper lab testing and guidance
from your healthcare provider,actually tracking your blood
sugar, your real ketone levels,your lipids, your kidney
(13:16):
function.
That's how you know if they'retruly helping your specific
goals or if they might becausing harm you can't feel.
Yet.
It really comes down to makinginformed choices based on your
own body's data, not just basedon hype or hope.
Mark (13:29):
Know thyself through data.
That's a powerful takeaway.
Thank you so much for breakingall that down for us.
Hopefully, this deep dive helpsall of you make more informed
decisions on your own healthjourneys.
Nicolette (13:45):
Thanks for tuning into the Health Pulse.
If you found this episodehelpful, don't forget to
subscribe and share it withsomeone who might benefit.
For more health insights anddiagnostics, visit us online at
wwwquicklabmobilecom.
Stay informed, stay healthy andwe'll catch you in the next
episode.
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