By Dr. Amanda Caban, MD, ABIM, ABOM Founder, Caban Metabolic Wellness Credentials: * NPI: 1942601687
- Florida Medical License: ME 181044
- Puerto Rico Medical License: 19,964
- Board Certified: Internal Medicine & Obesity Medicine
At a Glance: The Menopause-Metabolism Connection
- The Shift: Dropping estrogen during perimenopause directly increases insulin resistance.
- The Symptom: “Chronic inflammation” is often a result of visceral fat and poor sleep.
- The Solution: Focus on muscle preservation and data-driven monitoring (CGM).
- Telemedicine: Dr. Caban provides specialized care for women across Florida and Puerto Rico.
If You Feel Like Your Body Betrayed You, You’re Not Imagining It.
Many high-functioning women in Florida and Puerto Rico come to my telemedicine practice with the same frustrations:
- “I’m gaining weight despite eating the same way.”
- “I wake up exhausted and my brain fog is awful.”
- “I feel puffy and inflamed all the time.”
- “My anxiety exploded out of nowhere.”
Most of these women have been told by other providers that their “labs are normal.” Meanwhile, they feel physically and mentally worse every year.
The reality? Perimenopause is not just a reproductive transition; it is a metabolic transition.
Insulin Resistance, Perimenopause, and Metabolic Syndrome: Why You Suddenly Feel Inflamed, Exhausted, and “Not Like Yourself”
By Dr. Amanda Caban, MD, ABIM, ABOM
Founder, Caban Metabolic Wellness
NPI: 1942601687 • Puerto Rico Medical License: 19,964 • Florida Licensed Physician
If you feel like your body suddenly changed in your late 30s or 40s, you are not imagining it.
Many high-functioning women tell me:
- “I’m gaining weight despite eating the same way.”
- “I wake up exhausted.”
- “I feel inflamed all the time.”
- “My brain fog is awful.”
- “I suddenly crave sugar constantly.”
- “My anxiety exploded out of nowhere.”
- “I don’t recover from workouts anymore.”
- “I feel like my body betrayed me.”
And many of them are told:
“Your labs are normal.”
Meanwhile, they feel physically and mentally worse every year.
The reality is that perimenopause is not only a reproductive transition.
It is also a metabolic transition.
Hormonal shifts during perimenopause can affect:
- insulin sensitivity
- body composition
- inflammation
- sleep
- appetite
- stress response
- muscle mass
- recovery
- energy regulation
- cardiovascular risk
This is one reason so many women suddenly feel inflamed, exhausted, foggy, and metabolically “off” in their 40s.
Evidence-Based Care Matters
There is a reason so many women feel dismissed during perimenopause.
Many symptoms of metabolic dysfunction and hormonal transition develop gradually and are often minimized as “stress,” “aging,” or lack of discipline.
However, modern research increasingly shows that:
- perimenopause affects metabolic health earlier than many women realize
- insulin resistance may develop years before diabetes
- sleep disruption can worsen glucose regulation
- visceral fat increases inflammatory signaling
- muscle loss contributes to worsening metabolic flexibility
This is why evidence-based obesity medicine and menopause care matter.
At Caban Metabolic Wellness, care is rooted in current medical literature, obesity medicine principles, and individualized clinical evaluation — not crash diets, shame, or one-size-fits-all wellness advice.
What Is Insulin Resistance?
Insulin is a hormone that helps move glucose (sugar) from your bloodstream into your cells for energy.
When the body becomes insulin resistant, your cells stop responding normally to insulin.
As a result:
- the pancreas produces more insulin
- blood sugar regulation becomes less efficient
- fat storage increases
- hunger and cravings worsen
- energy becomes unstable
- inflammation may increase
Many women develop early insulin resistance years before they are diagnosed with diabetes.
In fact, insulin resistance can exist even when:
- fasting glucose is “normal”
- A1c is “normal”
- standard labs look relatively reassuring
This is one reason why many women feel terrible long before traditional screening identifies a problem.
Why Does Perimenopause Affect Metabolism?
During perimenopause, estrogen and progesterone fluctuate unpredictably.
These hormonal changes can influence:
- insulin sensitivity
- sleep quality
- appetite hormones
- cortisol regulation
- fat distribution
- muscle preservation
- recovery from stress
Many women notice:
- increased abdominal fat
- worsening sleep
- lower stress tolerance
- worsening cravings
- reduced exercise recovery
- increased inflammation
- worsening anxiety
- energy crashes after meals
This is not simply “getting older.”
These changes are deeply connected to physiology.
Why Do I Suddenly Feel Inflamed All the Time?
Many women in perimenopause describe feeling:
- puffy
- swollen
- achy
- stiff
- chronically tired
- “inflamed”
Several factors may contribute.
1. Poor Sleep
Perimenopause commonly disrupts sleep.
Poor sleep can worsen:
- cortisol regulation
- insulin resistance
- appetite regulation
- inflammation
- cravings
- fatigue
Even a few nights of fragmented sleep can significantly affect metabolic health.
Research & Evidence
2. Loss of Muscle Mass
Muscle is metabolically protective.
As women age, they naturally lose muscle mass unless they actively preserve it.
Reduced muscle mass can worsen:
- insulin sensitivity
- metabolic flexibility
- glucose handling
- energy levels
This is one reason resistance training becomes so important after 40.
Research & Evidence
3. Chronic Stress and Cortisol
High-achieving women often operate under enormous chronic stress.
Over time, stress physiology can affect:
- appetite
- sleep
- cravings
- fat distribution
- inflammation
- insulin sensitivity
Women are not “lazy.”
They are exhausted, overstimulated, underslept, hormonally shifting, and metabolically stressed.
4. Increased Visceral Fat
Perimenopause is associated with increased abdominal and visceral fat accumulation.
Visceral fat is metabolically active and can contribute to:
- inflammation
- insulin resistance
- cardiovascular risk
- fatty liver disease
- worsening metabolic syndrome
Research & Evidence
What Is Metabolic Syndrome?
Metabolic syndrome refers to a cluster of metabolic risk factors that commonly occur together.
These may include:
- abdominal obesity
- elevated blood pressure
- elevated triglycerides
- low HDL cholesterol
- insulin resistance
- elevated fasting glucose
Metabolic syndrome increases the risk of:
- cardiovascular disease
- stroke
- type 2 diabetes
- fatty liver disease
- sleep apnea
Importantly, many women developing metabolic syndrome still appear “functional” externally.
Symptoms Women Commonly Ignore During Perimenopause
Many women normalize symptoms that may actually reflect metabolic strain or hormonal transition.
Common symptoms include:
- waking between 2–4 AM
- worsening belly fat
- increased sugar cravings
- anxiety “out of nowhere”
- feeling inflamed after meals
- worsening reflux
- exhaustion despite sleeping
- difficulty recovering from exercise
- brain fog at work
- joint stiffness
- frozen shoulder
- low stress tolerance
- afternoon crashes
- feeling “wired but tired”
These symptoms are often interconnected through:
- sleep disruption
- cortisol dysregulation
- insulin resistance
- inflammation
- hormonal fluctuation
Common Symptoms Women Search For
Many women do not initially search for “perimenopause.”
Instead, they search for symptoms such as:
- brain fog after 40
- anxiety out of nowhere
- exhausted after eating carbs
- weight gain despite exercise
- wake up at 3am every night
- frozen shoulder menopause
- inflammation after 40
- why am I so tired all the time
- insulin resistance symptoms women
- why do I crave sugar constantly
- why can’t I lose weight anymore
- high cortisol symptoms women
- why do I suddenly feel old
These symptoms are often connected.
Why “Eat Less and Exercise More” Often Stops Working
Many women become deeply frustrated because the strategies that worked in their 20s and 30s stop working.
This is not a personal failure.
Perimenopause changes physiology.
Many women benefit from:
- higher protein intake
- resistance training
- sleep optimization
- stress regulation
- metabolic assessment
- insulin resistance evaluation
- individualized obesity medicine treatment
- thoughtful hormone discussions when appropriate
Extreme restriction and chronic cardio alone often worsen exhaustion.
What Does the Research Actually Show?
Perimenopause and Visceral Fat
Research published in journals including Menopause and JAMA has shown that hormonal shifts during perimenopause are associated with increased visceral fat accumulation, even when body weight does not dramatically change.
Visceral fat is metabolically active and strongly associated with:
- insulin resistance
- inflammation
- cardiovascular disease
- fatty liver disease
Research
Sleep and Insulin Resistance
Sleep disruption alone can worsen insulin sensitivity within days.
Perimenopause-related insomnia and fragmented sleep may contribute to:
- increased cravings
- elevated cortisol
- fatigue
- worsening glucose regulation
Research
Resistance Training and Metabolic Health
Muscle tissue is one of the body’s most important defenses against worsening insulin resistance.
Research consistently shows that resistance training can improve:
- insulin sensitivity
- glucose handling
- body composition
- functional aging
This is one reason many women benefit more from preserving muscle mass than from excessive chronic cardio alone.
Research
Can Continuous Glucose Monitors (CGMs) Help?
In some patients, short-term continuous glucose monitoring may help identify:
- glucose variability
- post-meal crashes
- stress-related glucose changes
- sleep-related patterns
- individualized food responses
A CGM is not about perfection.
It is about understanding patterns.
At Caban Metabolic Wellness, physician-guided metabolic interpretation may help patients better understand how sleep, stress, hormones, and nutrition affect metabolism.
You Are Not Lazy
One of the most heartbreaking things many women say during perimenopause is:
“I feel like I lost my discipline.”
In reality, many are dealing with:
- hormonal shifts
- sleep disruption
- chronic stress
- insulin resistance
- inflammation
- metabolic changes
Your symptoms are real.
And you deserve evidence-based, compassionate care that looks at the full picture.
Frequently Asked Questions (FAQ)
What are the first signs of insulin resistance in women?
Early signs may include:
- fatigue after meals
- increased cravings
- abdominal weight gain
- brain fog
- worsening energy
- difficulty losing weight
- increased hunger
- skin changes such as skin tags or acanthosis nigricans
Many women develop symptoms long before diabetes is diagnosed.
Can perimenopause cause insulin resistance?
Hormonal fluctuations during perimenopause can affect insulin sensitivity, body composition, sleep, and appetite regulation. Many women notice worsening metabolic symptoms during this transition.
Why am I gaining weight despite eating the same?
Perimenopause can alter:
- muscle mass
- insulin sensitivity
- stress physiology
- sleep quality
- fat distribution
This means the same habits may no longer produce the same metabolic response.
Why do I wake up at 3am every night?
Perimenopause commonly disrupts sleep architecture and stress hormone regulation. Poor sleep can worsen fatigue, cravings, inflammation, and insulin resistance.
Can insulin resistance cause anxiety or brain fog?
Metabolic dysfunction, poor sleep, glucose variability, and chronic stress physiology may contribute to cognitive symptoms such as brain fog, fatigue, and worsening anxiety.
What is metabolic syndrome?
Metabolic syndrome refers to a cluster of metabolic risk factors including abdominal obesity, insulin resistance, abnormal cholesterol, elevated blood pressure, and elevated blood sugar.
What labs help evaluate insulin resistance?
Depending on the individual patient, evaluation may include:
- fasting insulin
- fasting glucose
- hemoglobin A1c
- lipid panel
- liver enzymes
- body composition evaluation
- inflammatory markers in selected cases
Lab interpretation should always occur in clinical context.
Can women have insulin resistance with normal glucose?
Yes. Many women have early insulin resistance despite normal fasting glucose or normal A1c levels.
Are CGMs only for diabetes?
Not necessarily. In selected patients, short-term physician-guided glucose monitoring may provide insight into metabolic patterns and lifestyle responses.
Why do I suddenly feel worse after eating carbs?
Some women experience glucose variability or reactive energy crashes related to insulin resistance, poor sleep, stress physiology, or reduced metabolic flexibility.
Can perimenopause increase inflammation?
Hormonal shifts, visceral fat accumulation, sleep disruption, and chronic stress physiology may all contribute to increased inflammatory symptoms during perimenopause.
Why am I exercising and still gaining weight?
Perimenopause affects:
- muscle mass
- insulin sensitivity
- recovery
- appetite hormones
- stress physiology
This means exercise alone may not fully address underlying metabolic dysfunction.
Is fasting insulin more useful than glucose alone?
In selected patients, fasting insulin may provide earlier clues about metabolic dysfunction before glucose or A1c become abnormal.
Lab interpretation should always occur in clinical context.
Why does chronic cardio sometimes stop working after 40?
Excessive chronic cardio without adequate recovery, protein intake, sleep optimization, or resistance training may worsen fatigue and muscle loss in some women.
What type of doctor treats insulin resistance in women?
Depending on the patient, care may involve obesity medicine physicians, endocrinologists, menopause specialists, or primary care physicians with expertise in metabolic health.
About the Author
Dr. Amanda Caban, MD, ABIM, ABOM
Dr. Amanda Caban is a physician specializing in obesity medicine, metabolic health, insulin resistance, and perimenopause care.
She is board-certified in Internal Medicine and Obesity Medicine and focuses on evidence-based telemedicine care for women experiencing:
- metabolic dysfunction
- weight changes
- fatigue
- insulin resistance
- body composition changes
- hormonal symptoms during perimenopause and menopause
Her clinical approach integrates:
- obesity medicine
- body composition science
- metabolic health
- lifestyle physiology
- sleep and stress evaluation
- evidence-based hormone discussions when appropriate
Dr. Caban founded Caban Metabolic Wellness to provide thoughtful, physician-led care outside the rushed traditional medical model.
Credentials:
- Board Certified in Internal Medicine (ABIM)
- Board Certified in Obesity Medicine (ABOM)
- NPI: 1942601687
- Puerto Rico Medical License: 19,964
- Florida Licensed Physician: 181044
Telemedicine appointments available for eligible patients in Puerto Rico, Florida, and Texas.
Evidence-Based Telemedicine Care
If you feel like your body changed and nobody has fully explained why, you are not alone.
Many women benefit from a deeper evaluation that looks at:
- metabolism
- sleep
- stress physiology
- body composition
- insulin resistance
- hormonal transition
- lifestyle patterns
At Caban Metabolic Wellness, care is physician-led, evidence-based, and designed to help women better understand what is happening physiologically — without shame, rushed visits, or extreme wellness culture. hormones and insulin are working against you.
Explore our medical weight management services, or read Why Belly Fat Appears in Your 40s (Perimenopause Hormones Explained by a Physician in Puerto Rico & Florida).
Telemedicine consultations are available in Puerto Rico, Florida, and Texas. See how care works or schedule your initial consultation.