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Hormones and Endocrine

Estrogen Is Not the Villain: Laura Neville on Specialty Testing and the Full Picture of Hormonal Health

Naturopathic Doctor Laura Neville explains why standard blood testing misses the fat-soluble reality of sex hormones — and rehabilitates estrogen's vital role in dozens of body systems.

Laura Neville, ND · Naturopathic Doctor, Laura Neville, LLC · 9 min read

Reviewed by Holistic Health Clinical Team

Key Takeaways

  • Standard serum hormone testing can miss important information because sex hormones are fat-soluble and may not be accurately reflected in blood — Neville uses specialty testing to capture the full picture.
  • The free, bioavailable fraction of hormones matters more than total levels; high SHBG can leave total estrogen or testosterone appearing normal while active levels are significantly low.
  • Laura Neville combines the patient's lived experience with objective specialty testing — treating both as valid and necessary clinical data.
  • Estrogen plays vital roles in temperature regulation, joint health, skin, digestion, sleep, cognition, bone density, and cardiovascular function — declining levels affect all of these simultaneously.
  • Women are now better informed and advocating for themselves in hormone medicine; Neville sees this as positive and seeks to meet that advocacy with genuinely comprehensive care.

Laura Neville sees a shift happening in hormone medicine. Women are arriving at her office better informed than ever — and less willing to accept the dismissals that previous generations absorbed in silence.

Neville is a Naturopathic Doctor practicing at Laura Neville, LLC, within Whole Family Wellness Center in Portland, Oregon. Her work centers on hormonal health with a particular emphasis on the nuances that standard care misses: the limitations of conventional hormone testing, the misunderstood role of estrogen, and what it actually means to practice hormone medicine as both art and science. Her patients tend to be women who have been told their labs are normal but know something is off — and who have decided to seek out a provider willing to look more carefully.

The Testing Gap: Why Standard Blood Work Isn't Enough

One of the first things Neville challenges in her practice is the adequacy of standard serum hormone testing. The chemistry of sex hormones makes this a more nuanced problem than it might initially appear, and Neville is precise about the biology involved.

"My approach to hormone imbalance embraces holistic medicine as both an art and a science. I often incorporate specialty testing, as standard serum hormone testing can sometimes fail to provide a complete picture. Sex hormones are fat-soluble compounds, derived from cholesterol, and are not always accurately reflected in the bloodstream, which is primarily a water-based environment. By combining a patient's lived experience with objective testing, I'm able to confidently identify underlying imbalances. From there, I develop personalized treatment plans that may include nutritional support, targeted vitamin and mineral supplementation, botanical therapies, hormone replacement therapy and, when appropriate, pharmaceutical interventions. Each treatment plan is tailored to the individual, recognizing that no two patients are exactly alike."

Laura Neville

Laura Neville, ND

Laura Neville, LLC · Portland, OR

Visit Website →

The fat-solubility point is clinically important and widely underappreciated. Estrogen, progesterone, and testosterone are all fat-soluble steroid hormones — they are synthesized from cholesterol and transported primarily bound to carrier proteins like sex hormone-binding globulin (SHBG) and albumin. Only the unbound, "free" fraction is biologically active. Standard serum testing measures total hormone levels, which includes the bound, inactive fraction. It doesn't always capture what's bioavailable. For a woman with high SHBG — common in women on oral contraceptives, under chronic stress, or with elevated thyroid hormones — total estrogen or testosterone can look normal while free levels are significantly low. This discrepancy between the total level that shows up in blood and the active level that the tissues actually experience is precisely the kind of gap that leaves patients told they're "normal" while feeling anything but.

Specialty testing — dried urine (DUTCH), salivary hormone panels, or specific free-fraction blood assays — fills this gap. The DUTCH test in particular measures not just hormone levels but hormone metabolites, revealing how the liver is processing and clearing estrogen. This matters because certain estrogen metabolites are more proliferative than others, and the balance between protective and more potent metabolites has implications for breast and uterine tissue health over the long term. Neville's combination of the patient's lived experience with objective specialty testing allows her to build a picture that standard care never assembles. For women who want to understand how to read their hormone labs and why standard reference ranges may not tell the full story, Neville's approach offers the clinical depth that answer requires. The broader question of how to support hormonal balance across life stages is one that Neville addresses with exactly this level of individualized precision.

The individualization principle Neville emphasizes — "no two patients are exactly alike" — is not a platitude in her practice; it's an operational reality. The same progesterone level that produces optimal sleep and mood in one woman may be inadequate for another. The same estrogen dose that eliminates hot flashes in one patient may produce breakthrough bleeding in another. Getting hormone therapy right requires iterative, personalized calibration guided by the patient's response as much as by their lab values. This is why the specialty testing is only half of Neville's diagnostic approach: the other half is listening carefully to what the patient is experiencing and taking that seriously as clinical data.

Women Advocating for Themselves: A Shift Neville Welcomes

The landscape of women's hormone care is changing, and Neville has a front-row seat to it in her Portland practice. The patients she sees today are more informed, more insistent, and less willing to accept dismissal than those of previous generations — and Neville considers this unambiguously positive.

"I'm encouraged to see a shift taking place in the field of hormone health. Today, many women are well informed and are actively advocating for better care. They are no longer willing to be overlooked or dismissed. My hope is that women continue to seek out practitioners who truly honor their experiences and listen attentively during visits. Every woman deserves to feel heard, supported, and empowered — and no one should have to endure hormonal symptoms unnecessarily."

Laura Neville

Laura Neville, ND

Laura Neville, LLC · Portland, OR

Visit Website →

The context for this shift matters. For decades, women's hormonal symptoms — particularly perimenopausal and menopausal complaints — were undertreated, dismissed, or managed with treatments that weren't calibrated to individual needs. The Women's Health Initiative (WHI) in 2002, which found elevated risks associated with synthetic hormone replacement therapy in older postmenopausal women, cast a long shadow over hormone prescribing that left many women suffering symptoms unnecessarily as providers became overly cautious about any hormone therapy. The nuances of bioidentical hormones, timing of initiation, individual risk stratification, and the important distinction between synthetic progestins and bioidentical progesterone were largely lost in a generalized caution that persists in many practices today. Research comparing different formulations of hormone therapy has found meaningful differences in risk profiles: a 2018 analysis found that bioidentical hormone therapy was associated with a decreased risk of breast cancer relative to conventional synthetic HRT [1]. A 2019 clinical study established bioidentical oral 17β-estradiol and progesterone as an effective treatment for vasomotor symptoms with a favorable safety profile [2].

The women now arriving at Neville's practice have done their homework. They know about the WHI controversy, they've read the updated guidelines, and they want a provider who can navigate the current evidence with them rather than reflexively avoiding the conversation. The growing body of research on how stress dysregulates hormonal systems and the relationship between HPA axis function and sex hormone balance gives these informed patients additional context for understanding why their hormonal symptoms don't exist in isolation. Neville's willingness to engage all of this complexity — to honor both the patient's experience and the evolving evidence — is precisely what this new generation of patients is seeking. Understanding what naturopathic medicine offers helps explain why this specialty has become a destination for women who have felt underserved by conventional endocrinology.

Estrogen Rehabilitated: The Hormone That Runs Everything

If there's one clinical narrative Neville has devoted particular attention to correcting, it's the prevailing view of estrogen as a dangerous hormone to be minimized. Her clinical perspective — backed by an expanding body of research — is the opposite: estrogen is indispensable, and its decline affects virtually every system in the body.

"Estrogen is no longer viewed as the villain it was once thought to be. In fact, it plays a vital role in hundreds of functions throughout the body. Healthy estrogen levels help regulate body temperature, support joint mobility, and maintain skin hydration and elasticity, while also promoting collagen production. Estrogen contributes to balanced digestion, restful sleep, cognitive function, and bone density, and plays an important role in breast and cardiovascular health."

Laura Neville

Laura Neville, ND

Laura Neville, LLC · Portland, OR

Visit Website →

The scope of estrogen's physiological roles is genuinely impressive, and Neville's clinical framing encourages practitioners and patients alike to hold that scope clearly. Estrogen receptors are found throughout the body — in the brain, bones, cardiovascular system, gastrointestinal tract, skin, joints, and immune tissue — which is why its decline at perimenopause produces such a wide range of symptoms. The hot flashes and night sweats associated with menopause are driven by estrogen's role in thermoregulation; the joint pain many perimenopausal women experience reflects estrogen's anti-inflammatory role in connective tissue; the cognitive changes and sleep disruption reflect its neuroprotective and neuromodulatory functions [3].

The cardiovascular and bone implications are particularly significant from a long-term health perspective. Estrogen's protective effects on the cardiovascular system — through its influence on lipid profiles, vascular tone, and inflammatory markers — mean that its loss at menopause is associated with a measurable increase in cardiovascular risk. Bone density begins declining in the perimenopause as estrogen levels fall, and this decline accelerates post-menopause; without adequate estrogen signaling, the balance between bone formation and bone resorption tips toward net loss. A 2017 review on estriol — the weakest of the three main estrogens, but one with documented clinical utility — found that even lower-potency estrogen forms play meaningful roles in tissue maintenance across multiple organ systems [4]. Research on how chronic stress depletes sex hormone precursors explains why stress management is an essential component of any serious hormonal health strategy, and why restoring hormones without addressing upstream stressors often produces incomplete results.

Neville's practice in Portland represents what hormone medicine looks like when it takes estrogen's full physiological role seriously. The treatment isn't just about alleviating hot flashes — it's about supporting the dozens of body systems that depend on adequate estrogen signaling to function well. And it isn't just about prescribing — it's about testing well, listening carefully, and building a treatment plan that honors both the science of hormones and the lived experience of the woman in the room. The women arriving at her door are asking better questions than ever. Laura Neville's job, as she sees it, is to finally give them the complete answers they deserve.

Frequently Asked Questions

Why doesn't standard blood testing always give an accurate picture of hormone levels?
Sex hormones like estrogen and testosterone are fat-soluble compounds primarily transported bound to carrier proteins (SHBG, albumin). Standard serum testing measures total hormone levels, including the inactive, bound fraction. For women with high SHBG, total levels can appear normal while bioavailable (free) levels are significantly low. Specialty testing — dried urine, saliva, or free-fraction assays — captures what's actually reaching the tissues.
What is the DUTCH test and why does Neville use it?
The DUTCH (Dried Urine Test for Comprehensive Hormones) measures not just hormone levels but hormone metabolites, revealing how the liver processes and clears estrogen. The balance between different estrogen metabolites has long-term implications for breast and uterine tissue health — information that blood testing doesn't provide.
What does Neville mean by hormone medicine being 'both an art and a science'?
The science is the testing — objective measurements of hormone levels, metabolites, and carrier proteins. The art is interpreting those results in the context of each patient's unique lived experience, symptoms, and goals. No two patients are alike, and getting hormone therapy right requires combining data with attentive listening and iterative, personalized calibration.
Is estrogen safe? What does the research say?
The research picture is more nuanced than the reflexive caution that followed the 2002 Women's Health Initiative. More recent research has found meaningful differences between synthetic and bioidentical hormone formulations in risk profiles. Bioidentical 17β-estradiol and progesterone have been shown effective for menopausal symptoms with favorable safety profiles. Estrogen is not a dangerous hormone to be minimized — it plays vital roles in dozens of body systems.
What treatment options does Neville offer beyond hormone replacement therapy?
Neville's treatment plans are individualized and may include nutritional support, targeted vitamin and mineral supplementation, botanical therapies, and lifestyle modification, before introducing HRT when indicated. She develops a personalized hierarchy based on what testing reveals and what the patient is experiencing — with pharmaceutical interventions available when needed but not defaulted to.

References

  1. 1.Conjugated equine estrogen and medroxyprogesterone acetate are associated with decreased risk of breast cancer relative to bioidentical hormone therapy and controls. Maturitas. 2018. PubMed
  2. 2.A combined, bioidentical, oral, 17β-estradiol and progesterone capsule for the treatment of moderate to severe vasomotor symptoms due to menopause. Menopause. 2019 Aug. PubMed
  3. 3.Understanding the pathophysiology of vasomotor symptoms (hot flushes and night sweats) that occur in perimenopause, menopause, and postmenopause life stages. Expert Opin Pharmacother. 2007. PubMed
  4. 4.Estriol: emerging clinical benefits. Menopause. 2017 Sep. PubMed