Hormone Therapy and Insulin Resistance: A Game-Changer for Menopausal Metabolic Health
Anna Harrelson • February 11, 2025
Menopause, Metabolism, and Hormones: How Estrogen Impacts Insulin Resistance and Why It Matters

As a menopause specialist, lifestyle medicine physician, and a perimenopausal woman with a family history of metabolic syndrome, I have a deep, personal and professional investment in the role of metabolic health during menopause. Preventing insulin resistance and diabetes is not just a clinical goal—it’s something I think about daily.
A groundbreaking meta-analysis recently published by The Menopause Society sheds light on an area that has long been debated: the relationship between hormone therapy (HT) and insulin resistance. This research reviewed 17 randomized controlled trials encompassing over 29,000 participants, finding that menopausal hormone therapy—including both estrogen alone and estrogen plus progestogen—can significantly reduce insulin resistance in healthy postmenopausal women.
This study is not just an academic curiosity. It has real, actionable implications for midlife women who are trying to navigate the complex landscape of hormonal changes, weight shifts, and metabolic health challenges. Let’s break down what this means, why it matters, and how we can apply this research to both clinical decision-making and personal wellness.
Understanding Insulin Resistance and Menopause
Insulin resistance is a condition where cells in the body become less responsive to insulin, leading to elevated blood glucose levels, increased fat storage (especially around the midsection), and a greater risk for developing type 2 diabetes. Estrogen plays a key role in regulating glucose metabolism, insulin sensitivity, and fat distribution, which is why the transition into menopause—when estrogen levels drop—often correlates with increased abdominal fat and metabolic dysfunction.
Many women find themselves frustrated, feeling like they’re doing everything right from a lifestyle perspective, only to see weight accumulate in their midsection. What used to work no longer does, and this can be incredibly disheartening. While medications exist that may seem like a quick fix, understanding the role of hormones and lifestyle remains critical in long-term metabolic health.
What the Study Found
This meta-analysis provides strong evidence that hormone therapy may not only alleviate traditional menopause symptoms but could also serve as a protective factor against insulin resistance. Here’s what stood out:
- Reduction in Insulin Resistance: HT was associated with a statistically significant reduction in insulin resistance markers across all included studies.
- Estrogen Alone vs. Estrogen + Progestogen: While both forms of HT improved insulin sensitivity, estrogen-only therapy showed slightly more pronounced benefits.
- Route of Administration Matters: Both oral and transdermal (patches, gels) routes showed efficacy, but different formulations may impact metabolic outcomes uniquely.
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No Increased Diabetes Risk: Contrary to outdated concerns, this research did not find an increased risk of diabetes with hormone therapy use.
The Bigger Picture: Cortisol, Stress, and Metabolic Dysfunction
While estrogen clearly plays a key role in metabolic regulation, it’s not the only factor at play. Stress—and its impact on cortisol—also significantly influences insulin sensitivity. Chronic stress, disrupted circadian rhythms, poor sleep, and lifestyle factors all contribute to increased insulin resistance, making menopause an even more vulnerable period for metabolic dysfunction.
Additionally, many women unknowingly exacerbate metabolic issues by under-eating and over-exercising. Chronic caloric restriction and excessive cardio without adequate strength training can drive up cortisol levels, leading to worsened insulin sensitivity, increased fat storage, and hormonal imbalances.
One of the most powerful tools for metabolic health is muscle. Muscle acts as a “sink” for glucose, helping regulate blood sugar and improve insulin sensitivity. The more muscle mass we maintain, the better our glucose control. For those struggling with insulin resistance or unexplained weight gain, a two-week trial using a continuous glucose monitor (CGM) can provide valuable insights into how their body processes glucose, helping them make more informed dietary and lifestyle decisions. Keeping blood sugar balanced and avoiding spikes is key to reducing insulin resistance and maintaining optimal metabolic health.
What Does This Mean for You?
If you are a perimenopausal or postmenopausal woman concerned about metabolic health, here are key takeaways:
1. Hormone Therapy Isn’t Just for Hot Flashes – If you’re struggling with weight gain, insulin resistance, or metabolic shifts, HT may be a powerful tool to help stabilize your metabolism and improve insulin sensitivity.
2. Individualized Care is Essential – This study reinforces the importance of personalized medicine. The “best” HT formulation varies by individual risk factors, medical history, and metabolic profile.
3. Lifestyle Still Matters– HT can be part of the solution, but optimizing metabolic health also requires dietary adjustments, regular strength training, sleep hygiene, and stress management.
4. Not Everyone Can or Should Take HT– While HT has clear benefits, not all women are candidates. That doesn’t mean they are destined for insulin resistance or diabetes. Genetics, lifestyle, and overall metabolic health play major roles, and there are still many ways to reduce risk without hormone therapy.
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Advocacy is Key – Many clinicians still view HT through the outdated lens of the Women’s Health Initiative (WHI) study from the early 2000s. You deserve care informed by current science. If your doctor dismisses HT outright, it may be time for a second opinion.
Final Thoughts: Staying Ahead of the Research
This research reinforces what I—and many other menopause specialists—have suspected for years: the impact of estrogen on metabolic health extends far beyond its traditional role in symptom management. For those of us who are determined to prevent insulin resistance, diabetes, and metabolic disease in midlife and beyond, these findings should be front and center in our healthcare discussions.
As a menopause physician who tries to stay up to date with the latest research, I am here to provide informed, evidence-based guidance. If you’re navigating perimenopause or menopause and want to take a proactive approach to your health, I’d love to help you explore your options, including whether hormone therapy could be beneficial for you.
Because menopause isn’t just about surviving the transition—it’s about thriving in midlife and beyond.
WonderCreek Health Blog

You know how people say, "Just drink some water and take a magnesium supplement" like it’s the answer to everything? Well… they’re not totally wrong. But like most good advice, the devil is in the details. Magnesium is one of the most essential minerals in the body, involved in over 300 enzymatic reactions , yet it remains one of the most commonly overlooked deficiencies in midlife women. And no, your annual bloodwork probably didn’t catch it. So What Does Magnesium Actually Do? Think of magnesium as a multitasking background assistant—it keeps the lights on and the gears turning across nearly every body system: Brain & Mood: Regulates GABA and NMDA receptors, supporting calm, focus, and resilience against anxiety and overstimulation. Muscles: Prevents cramping and twitching, supports strength and recovery, and reduces restless legs. Sleep: Plays a role in melatonin production and nervous system regulation. Bowel Function: Helps pull water into the colon to prevent constipation. Cardiovascular Health: Regulates blood pressure and helps with vasodilation. Hormone Balance: Assists in estrogen metabolism and combats insulin resistance. In short: if you’re exhausted, bloated, moody, foggy, tense, or irregular in your gut or cycle—magnesium deserves a spot on your radar. Why Is Magnesium So Important in Midlife? Estrogen and progesterone both influence magnesium levels. As hormone levels decline or fluctuate during perimenopause and menopause, so does your ability to retain and utilize magnesium. Add to that: Chronic stress (which depletes magnesium) Modern diets (often low in magnesium-rich whole foods) Medications like PPIs, diuretics, or certain antibiotics High caffeine, sugar, or alcohol intake (all increase magnesium excretion) And suddenly, a " borderline magnesium issue " becomes a perfect storm. Why Your Blood Test Might Not Show It Serum magnesium tests only reflect ~1% of total body magnesium. Most magnesium is stored in bone and tissue. So it’s very possible to have "normal labs" and still be clinically deficient. In practice, we go by symptoms, risk factors, and therapeutic response. Common Signs of Suboptimal Magnesium Trouble falling or staying asleep Anxiety or nervous system overactivation Fatigue or burnout that doesn’t resolve with rest Muscle cramps, spasms, or eye twitches Constipation Menstrual migraines or tension headaches Joint stiffness or tightness Sugar cravings or blood sugar crashes Best Food Sources of Magnesium Magnesium-rich foods include: Dark leafy greens (spinach, chard) Nuts and seeds (especially pumpkin seeds and almonds) Avocados Legumes Dark chocolate (yes, really!) Whole grains like quinoa and oats That said, many of us still fall short even with a healthy diet, especially during high-stress seasons or if absorption is impaired. Supplements: Which Type of Magnesium Is Best? Not all magnesium is created equal. Here are the forms we most often recommend: Magnesium Glycinate: Best for sleep, anxiety, and muscle relaxation. Gentle on the stomach.** Magnesium Citrate: Useful for constipation, but can cause loose stools at higher doses. Magnesium Threonate: May support cognitive function and brain health. Magnesium Malate: Good for energy and muscle pain, often used in fibromyalgia. We generally avoid magnesium oxide unless constipation is the only concern, as it’s poorly absorbed. **Mag Glycinate is generally my go to recommendation and what we take at our house Also, BLENDS can be good- but generally more expensive Dosing & Timing Most women benefit from 200–400 mg daily, depending on needs. Take it in the evening if you're targeting sleep or relaxation. Divide doses if taking more than 300 mg (e.g. AM + PM). Always start low and go slow, especially with citrate forms to avoid urgent bathroom visits. Final Thoughts If magnesium had better marketing, it would be a top-tier wellness darling. But because it’s quiet, essential, and boring on paper, we tend to overlook it. Yet for so many midlife women, magnesium is the missing link that helps all the other systems and strategies finally click. So if you're doing "everything right" and still feel off? It might be time to start taking magnesium!

"Is Ozempic safe?" "Do I have to be diabetic to use it?" "Will I regain weight if I stop?" "I eat well, lift weights, sleep, take hormones—and I still can't lose weight. What's going on?" These are some of the most common questions I hear from women in midlife. And they’re incredibly valid. For decades, the conversation around weight and health has been riddled with shame, assumptions, and surface-level advice. But we’re finally shifting into a new era—one that recognizes obesity as a chronic, complex disease, not a personal failure. One that looks at metabolism through the lens of hormones, inflammation, genetics, stress, and brain chemistry, not just calories in and out. And at the center of this shift is an exciting class of medications known as GLP-1 receptor agonists. What Are GLP-1 Medications? GLP-1 stands for glucagon-like peptide-1, a hormone your body naturally produces in the gut. It helps regulate blood sugar, insulin, and satiety (your sense of fullness). GLP-1s also slow gastric emptying and signal your brain to reduce appetite. Medications like semaglutide (Ozempic, Wegovy), liraglutide (Saxenda, Victoza), and tirzepatide (Mounjaro) mimic this hormone and have been revolutionary for treating type 2 diabetes—and more recently, for metabolic syndrome and obesity. These drugs are not stimulants or fad diet tools. They are hormone-based medications with powerful metabolic and anti-inflammatory effects. Why Are GLP-1s So Relevant for Midlife Women? Midlife is a time of massive hormonal transition. Estrogen, progesterone, and testosterone levels shift dramatically in perimenopause and menopause. This impacts insulin sensitivity, body composition, lipid metabolism, sleep, inflammation, and brain function. Even women who have optimized their lifestyle—dialing in nutrition, strength training, sleep, and hormone therapy—may find themselves stuck. GLP-1 medications can be the missing piece for women who: Have insulin resistance or prediabetes that isn’t budging with lifestyle alone Carry weight disproportionately in the visceral (abdominal) area Are at increased cardiovascular risk due to family history, labs, or existing conditions Are experiencing significant inflammation or joint pain related to metabolic dysfunction Have a history of PCOS or gestational diabetes Are postmenopausal and noticing rapid changes in weight or metabolism These medications work synergistically with hormone therapy and can reduce inflammation, improve insulin sensitivity, and help shift body composition. For some women, they are as life-changing as starting estrogen. It’s Not Just About Weight Loss GLP-1s are being studied for NAFLD (fatty liver), cardiovascular protection, neurodegenerative disease, PCOS, and even addiction and mood regulation. The benefits go far beyond the scale. That said, when stubborn weight is a major barrier to living fully—whether due to physical discomfort, comorbidities, or psychological toll—helping a woman reduce weight safely and effectively can open the door to movement, joy, and hope. So, Who Should Consider a GLP-1? I don’t believe in prescribing these meds as a first-line for someone who hasn’t addressed the basics. That’s not judgment—it’s strategy. If you haven’t worked on: Blood sugar balance through real food Resistance training and daily movement Addressing sleep and circadian rhythms Managing stress and nervous system regulation Optimizing hormones, micronutrients, and gut health … then you’re not giving yourself the best shot at lasting change. But if you have done the work and still feel like your body is working against you—or you have serious metabolic risk factors— then GLP-1 therapy might be a wise and evidence-based next step. Some women use it briefly to reset. Others may need it long-term, just like hormone therapy. It’s not a crutch. It’s a tool. And for the right woman, it can be life-changing. Common Questions I Hear "Will I gain the weight back if I stop?" Maybe—but not always. If the lifestyle foundations are in place, many women maintain progress even after discontinuing. But some women have chronic conditions that benefit from ongoing use. That’s not failure—that’s biology. "Are there side effects?" Yes. The most common are nausea, constipation, or bloating early on. Starting slow, staying hydrated, and eating smaller portions helps. Rare but serious risks exist, including pancreatitis. A good clinician will walk you through these carefully. "Will I lose muscle?" You can—unless you’re strength training and eating enough protein. We talk a lot about this at Wondercreek. Protecting lean muscle is critical. "Is this forever?" Not necessarily. Some women use these meds to reduce inflammation, restore insulin sensitivity, and break a cycle. Others stay on them longer due to underlying metabolic dysfunction. Every plan is individualized. Final Thoughts GLP-1 medications aren’t for everyone. But they are not cheating, shameful, or lazy. They’re a legitimate, science-based treatment for a serious, chronic condition. In my practice, we focus on healthspan—not just lifespans. That means preserving function, preventing disease, and helping you feel energized, sharp, and resilient for as long as possible. For some women, GLP-1 therapy is one of the most powerful tools we have to get there.