Estrogen Dominance Isn’t What You Think: Understanding the Real Hormone Imbalance in Perimenopause
Anna Harrelson • June 11, 2025

You may feel estrogen dominant, but still be estrogen deficient. Here’s how that works.

If you’ve ever been told that your mood swings, breast tenderness, or heavy periods are due to "estrogen dominance," you’re not alone.

But the truth? The phrase "estrogen dominance" is often misunderstood and oversimplified—especially in midlife.

In perimenopause, the problem is usually not that your body is producing too much estrogen. It’s that it’s not making enough progesterone to balance the estrogen you do have. And that fluctuating estrogen (sometimes high, sometimes low) can create chaos in your body and brain.

Let’s dig in.

What is Estrogen Dominance, Really?

The term originally described a state where estrogen effects outweigh progesterone effects, either because estrogen is too high, or progesterone is too low.

But in clinical practice—especially during perimenopause—we more often see the second scenario:
  1. Progesterone production drops first (due to fewer ovulations)
  2. Estrogen levels swing wildly (some months high, some months low)
  3. You end up with unbalanced estrogen, not necessarily excessive estrogen
Symptoms can include:
  • Mood swings or irritability
  • Sleep disruption
  • Heavy or irregular bleeding
  • Breast tenderness or fibrocystic breasts
  • Bloating
  • Anxiety
  • Brain fog
If this sounds like your monthly reality in your 40s, you’re not broken—you’re probably in perimenopause.

The Progesterone Problem

One of the earliest hormone shifts in perimenopause is reduced ovulation. And if you’re not ovulating regularly, you’re not making enough progesterone.

Progesterone is our calming, anti-anxiety, sleep-supporting hormone. It helps balance estrogen in the uterus, the brain, and the nervous system. When it's low, estrogen has no counterweight. Even normal estrogen levels can feel overwhelming without enough progesterone to buffer them.

This is why so many women in perimenopause feel like their emotions are more intense, their PMS is worse, and their sleep is disrupted—even if their estrogen levels aren't technically high.

Fluctuating Estrogen: The Rollercoaster

Estrogen doesn't decline gradually in perimenopause. It swings. You might have:
  • One month with a sky-high estrogen surge (hello, swollen breasts and heavy periods)
  • The next month with almost none (hello, hot flashes and low libido)
This is normal. But it’s not easy.

And these fluctuations are often missed on bloodwork because hormone levels change hour to hour, not just month to month. That’s why we treat you, not just your labs.

What About Estrogen After Menopause?

Once you hit menopause (12 months without a period), your estrogen levels tend to stay low—but the symptoms may continue. Many women assume they are still estrogen dominant if they have weight gain, mood issues, or breast tenderness, but the truth is:
  • You are likely estrogen deficient
  • You may also be progesterone and testosterone deficient
  • Some of your receptors may be more sensitive, or inflamed, giving you exaggerated responses
This is where hormone therapy can play a powerful role in restoring balance.

What You Can Do
  • Track your symptoms: Patterns can tell us more than one-time labs
  • Consider bioidentical progesterone: Especially if sleep, anxiety, or PMS are your biggest issues
  • Support your liver: Detox pathways help metabolize estrogen safely
  • Strengthen your gut: Your microbiome (especially the estrobolome) helps regulate estrogen levels
  • Reduce stress: Cortisol can suppress progesterone and worsen hormone chaos
  • Strength train: Builds resilience, stabilizes blood sugar, and helps with hormone receptor sensitivity

WonderCreek Health Blog

By Anna Harrelson July 12, 2025
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!
By Anna Harrelson July 12, 2025
"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.