Normal is not the same as optimal. And it’s definitely not the same as well.
She has heard it so many times she’s started to believe it. “Your labs are normal.” “Everything looks fine for your age.” “It’s probably just stress.” And she walks out with no answers, a vague instruction to “take it easy,” and a creeping suspicion that maybe she’s imagining all of it.
She is not imagining it. And “normal labs” does not mean her body is fine.
What “Normal” Actually Means on a Lab Report
Reference ranges are established by taking a large population of people, measuring a marker, and identifying the range within which 95% of that population falls. The goal is to identify statistical outliers — not to define optimal health. That population includes people who are sedentary, chronically stressed, and symptomatic. [1]
The Specific Tests That Miss the Most
TSH Alone Does Not Tell the Thyroid Story
TSH measures how hard the pituitary is working to signal the thyroid — not how much active thyroid hormone is reaching your cells. Free T3, the active form, is almost never tested. A woman can have a TSH of 2.1 — squarely “normal” — with free T3 at the bottom of its range, reverse T3 blocking what little T3 she has, and thyroid antibodies indicating a silent autoimmune process. She will be told her thyroid is fine. She will not feel fine.
Ferritin Is Not the Same as Iron — And the Story Is More Complex Than You’ve Been Told
In my training with Morley Robbins and the Root Cause Protocol, ferritin is understood very differently from its conventional description. Ferritin is essentially a marker of inflammation. When the body is under oxidative stress or inflammatory load, ferritin is released outside of the cell — into the serum — where it becomes visible on a blood test. In a healthy body, ferritin belongs inside the cell. Ferritin gets stored in the intestines, liver, and macrophages, and its presence in the serum in significant quantities is a sign that something inflammatory is driving it out.
This perspective is supported by researchers including Dr. Phillip McMillan, whose work points to ferritin as a significant marker of systemic inflammatory processes. Academic researcher Douglas Kell has taken this further, arguing that ideally ferritin should be essentially zero — because elevated serum ferritin indicates iron that has escaped proper cellular regulation and is generating oxidative stress, with significant long-term health implications.
From an RCP perspective, the functional range for ferritin is ideally below 20 ng/mL, and the more important companion marker is total iron — which should be approximately 100 μg/dL. The focus shifts away from “is ferritin high enough” toward “why is ferritin elevated, and what inflammatory or iron dysregulation process is driving it?” A woman with ferritin of 14 and the conventional label of “iron deficient” may actually be experiencing iron dysregulation driven by inadequate ceruloplasmin — a very different clinical picture requiring a very different response.
Cortisol on a Single Blood Draw Is Nearly Meaningless
A single cortisol draw tells us only whether cortisol is catastrophically low or high. It tells us nothing about the rhythm pattern. A four-point salivary or dried urine assessment throughout the day is what actually reveals whether cortisol peaks too late, crashes by noon, or spikes at night.
Serum Minerals Are Unreliable Indicators of Cellular Status
Approximately 99% of magnesium in the body is intracellular or stored in bone. Serum magnesium represents only about 1% of total body magnesium — and it is the last thing to drop when the body is depleted. This is why my clinical mentor Morley Robbins and the Root Cause Protocol place such emphasis on HTMA as a more reliable window into true mineral status. [2]
What to Do If You’ve Been Told You’re Fine
- Request free T3, free T4, reverse T3, thyroid antibodies, ferritin specifically, and fasting insulin — see Tools I Use As A Holistic Health Coach for the full list
- Ask for hormones to be drawn on the correct day of your cycle — progesterone on day 21, not randomly. Read The Four Phases of Your Menstrual Cycle Explained to understand why timing matters
- Ask not just “is this normal?” but “where in the range does this fall, and what is optimal for someone with my symptoms?”
- Seek a practitioner trained in functional or naturopathic medicine who interprets results in clinical context
Normal labs are not the final word. They are the beginning of a better conversation.
Ready to Stop Chasing Symptoms and Start Uncovering Solutions?
If you’re tired of being told everything is “normal” when you know something feels off… I see you.
Your body has deep inner wisdom. Those symptoms? They’re not random. They’re guideposts asking for attention. And when we take the time to uncover the root cause, small shifts can lead to big changes.
As a naturopathic doctor and functional medicine practitioner, I help high-performing women in their 30s–40s move from health prescriptions to true health transformation. Through precision testing, personalized protocols, and faith-aligned, whole-person care, we work together to restore hormonal balance, optimize fertility, and rebuild vibrant energy from the inside out.
You don’t have to navigate this alone.
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References
- Friedman LS, et al. Statistical basis of laboratory reference intervals. Clinical Chemistry. 1972;18(10):1234-1238.
- Elin RJ. Magnesium: the fifth but forgotten electrolyte. American Journal of Clinical Pathology. 1994;102(5):616-622. doi:10.1093/ajcp/102.5.616
