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Iron Deficiency — a functional-medicine root-cause overview from the Integrative You clinical team

CONDITION · ROOT-CAUSE GUIDE

Iron Deficiency and Low Ferritin: Why It Keeps Coming Back

Medically reviewed by Dr. Nicole Rivera, DC, IFMCLast updated

Iron deficiency is a symptom, not a diagnosis. The question that matters is where the iron is going, or why it is not being absorbed.

Hair loss
Heavy periods
Restless legs syndrome

The short answer

What is a healthy ferritin level?

Laboratory ranges often start near 10 to 15 ng/mL, but symptoms of deficiency — fatigue, hair shedding, restless legs, poor exercise tolerance — commonly appear below about 30 to 50 ng/mL, well inside the so-called normal range.

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By 3pm on a normal day, you feel…

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Common signs & symptoms

Fatigue out of proportion to activity · Hair shedding · Breathlessness on exertion · Restless legs · Pale skin · Cold hands and feet

Ferritin Falls First

Haemoglobin is the last thing to drop. Ferritin — stored iron — falls months or years earlier, and symptoms including fatigue, hair shedding, breathlessness on stairs, restless legs and poor exercise recovery begin in that window.

A normal full blood count therefore does not rule out iron deficiency. Ferritin has to be measured, and read against the symptoms rather than against the very low end of the laboratory range.

Losses and Absorption

In menstruating people, heavy periods are the most common cause and are routinely under-recognised. Otherwise, gastrointestinal loss must be considered and investigated.

Absorption is the other half. Low stomach acid, H. pylori infection, coeliac disease, inflammatory bowel disease and long-term acid-suppressing medication all reduce iron uptake, which is why supplementation alone often fails.

Inflammation Hides It

Ferritin is also an acute-phase protein, so active inflammation pushes it up. Someone can be genuinely iron deficient with a ferritin that reads normal.

Reading ferritin alongside CRP, transferrin saturation and full iron studies is what separates real stores from an inflammatory reading.

15 years of pattern recognition

The three roots we find under iron deficiency.

Almost every chronic case we've seen traces back to one — or a combination — of these three lenses. The label on your chart is rarely the cause. The cause is upstream.

Lens 1 of 3

Emotional · Psychosomatic

German New Medicine ties the gut to indigestible conflict — a relationship, job, or boundary you keep swallowing instead of dealing with.

What it looks like

Chronic bloating in someone who can't leave a toxic marriage or a job that violates their values. The gut literally cannot digest the life they're forcing down.

Lens 2 of 3

Toxic Load

Glyphosate, pesticides, mold, processed seed oils, heavy metals from amalgams — the gut lining and microbiome take the first hit.

What it looks like

Non-organic produce, conventional meat, and herbicide-soaked grains shred the mucosal barrier long before any 'IBS' label gets stamped on.

Lens 3 of 3

Dysbiosis · Infection

Parasites, H. pylori, SIBO, candida, post-antibiotic dysbiosis. Real bugs driving real symptoms — and almost never tested for properly.

What it looks like

A parasite picked up 6 years ago on a trip nobody connected back to the bloating, brain fog, and rosacea showing up today.

The Black Sheep philosophy

It's not what you do. It's how you do it.

Supplements don't fail. Detoxes don't fail. People fail to find the ONE foundational issue — the lever that, once moved, lets every other system autocorrect. We're not chasing symptoms. We're hunting the root that holds the whole pattern in place.

The top 5 blind spots

What conventional medicine isn't telling you about iron deficiency.

Not because anyone is careless — because the visit is ten minutes long and the panel is built to rule out disease, not to explain why you feel like this. These are the five things we look at that almost nobody else does.

  1. 1

    What you cannot digest in your life

    What you're told

    Diet is reviewed; the life being swallowed is not.

    What we look at

    The relationship, job, or boundary you keep forcing down. Guts that cannot digest a life rarely digest food well either.

  2. 2

    Vagus nerve and eating state

    What you're told

    Nobody asks how you eat — only what you eat.

    What we look at

    Whether you eat in fight-or-flight, standing, rushed, or mid-conflict. Digestion is a parasympathetic act.

  3. 3

    Stealth organisms

    What you're told

    A standard stool panel or a scope, then an IBS label.

    What we look at

    Parasites, H. pylori, SIBO, and post-antibiotic dysbiosis — often traced to a trip or an antibiotic course years earlier.

  4. 4

    Barrier and bile function

    What you're told

    Acid is suppressed rather than assessed.

    What we look at

    Whether you make enough acid, bile, and enzymes at all. Low output looks identical to reflux and is treated backwards.

  5. 5

    Toxic load hitting the gut lining first

    What you're told

    Glyphosate, seed oils, and metals are not part of a GI workup.

    What we look at

    Cumulative chemical exposure on the mucosal barrier and microbiome, long before any diagnosis was stamped on.

Why our intake is different

90% of the clarity comes from how we ask, not what we run.

Our assessments and intake are built to be precise enough that your history finally pieces itself together — the timeline, the exposures, the emotional load, the labs everyone called normal. That is where root cause shows up. Testing confirms and sequences it; it does not replace it.

It is not about what you do. It is about how you do it. Strategy and integration decide the outcome.

Test, don't guess

Which path is actually yours.

Guessing is expensive — in money, in years, and in quality of life. The right entry point depends on how complex your case is and how much your daily life is being taken from you.

You want foundational wellness

Foundation Program

Symptoms are real but life is functioning. You need the foundation built correctly and in the right order — not another protocol you abandon in week three.

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It is complex — you need the map

DNA Precision

Multiple systems involved, symptoms that contradict each other, or labs that keep coming back normal. The stressors on your DNA plus biomarkers tell us what your body cannot do on its own, and what to sequence first.

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Quality of life is suffering

Private Concierge

When it is severe, layered, or time-sensitive, you get Dr. Nicole and the clinical team on your case directly — testing, strategy, and integration handled with you, week over week.

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Documented outcomes · real labs

What this looks like when it actually works.

All case studies

What you get from us, always

Six promises we don't break.

We never give up

Complex, weird, and "nothing worked" cases are the ones we take.

We have your back

You are not managing this alone between appointments.

We always find the root cause

We keep going upstream until the pattern explains every symptom.

We look at all of you

Mind, body, exposure history, genetics, and the life you are actually living.

Precision or nothing

No shotgun protocols. If we cannot justify it, you do not take it.

Clarity produces outcomes

When you understand why, implementation stops being a willpower problem.

See the intake & precision testing steps

The questions nobody answered for you

What conventional medicine isn't testing you for.

See the intake & precision testing steps

How we think about this clinically

The Klinghardt & bioresonance toolkit

The framework and assessment tools we layer on top of standard functional labs to find root cause faster — especially in chronic, "we've tried everything" cases.

Framework

Dr. Klinghardt's 5 Levels of Healing

The map we use to sequence labs, detox, and neural retraining — instead of stacking supplements at random.

Tool

Bioresonance Therapy — what it actually is

Practitioner-grade read on Oberon, NLS, MORA, BICOM and where bioresonance earns a place next to standard functional labs.

Legacy IWG

Bioresonance at the former IWG clinic

If you found us through Integrative Wellness Group — this is where our bioresonance work moved.

Iron Deficiency: the questions people actually ask

What is a healthy ferritin level?

Laboratory ranges often start near 10 to 15 ng/mL, but symptoms of deficiency — fatigue, hair shedding, restless legs, poor exercise tolerance — commonly appear below about 30 to 50 ng/mL, well inside the so-called normal range.

Why does my iron keep dropping even though I supplement?

Either ongoing loss or impaired absorption.

Heavy periods and gastrointestinal bleeding are the common losses; low stomach acid, H. pylori, coeliac disease and acid-suppressing medication are the common absorption problems.

Can I be iron deficient with normal blood counts?

Yes, and it is common.

Haemoglobin falls last. Ferritin can be depleted for a long time before anaemia appears, and symptoms start in that earlier window.

Frequently asked questions

What is a healthy ferritin level?

Laboratory ranges often start near 10 to 15 ng/mL, but symptoms of deficiency — fatigue, hair shedding, restless legs, poor exercise tolerance — commonly appear below about 30 to 50 ng/mL, well inside the so-called normal range.

Why does my iron keep dropping even though I supplement?

Either ongoing loss or impaired absorption. Heavy periods and gastrointestinal bleeding are the common losses; low stomach acid, H. pylori, coeliac disease and acid-suppressing medication are the common absorption problems.

Can I be iron deficient with normal blood counts?

Yes, and it is common. Haemoglobin falls last. Ferritin can be depleted for a long time before anaemia appears, and symptoms start in that earlier window.

Why is my ferritin normal if I have every symptom of deficiency?

Ferritin rises with inflammation, so an inflammatory state can mask depleted stores. Interpreting it alongside CRP and transferrin saturation resolves the picture.

Which form of iron is best tolerated?

Tolerance varies, but alternate-day dosing usually raises iron more effectively than daily dosing because it avoids the hepcidin block, and it causes far fewer gastrointestinal side effects.

Not sure if this is you?

Not sure which path fits? Ask us directly.

Tell us your iron deficiency story in a few lines. We'll tell you whether Health Decode, Foundation, DNA Precision, or Private Concierge is the right next move — no pressure, no upsell.

15 minutes · free · the Integrative You team only (no sales pitch)

This page is educational. It is not a substitute for personalized clinical evaluation. If you suspect iron deficiency, work with a qualified practitioner — we can be one of them.

Ready to investigate your case

Stop guessing. Map the root cause.

Where to go from here

Four ways in. Start at whichever rung is honest for you.

You don't have to commit to a full workup to make progress on iron deficiency. Every rung below feeds the next one — nothing you do at the free end gets thrown away when you move up.

  1. Free · 4 minutes

    Your Integrative Life Compass

    10 questions, report emailed to you. Shows which systems are driving the rest, so you stop guessing which protocol to try next.

    Find your root cause

  2. Entry

    Root Cause Snapshot

    A written read on your pattern from the intake you already filled out — what to investigate first, and what to stop paying for.

    See the Snapshot

  3. Most chosen

    DNA Precision

    200+ biomarkers plus your DNA, translated into a 90-day protocol with named brands and doses. Includes the INNSPO practice app.

    Start DNA Precision

  4. Hands-on

    Private Concierge

    A standing clinical team on your case — reachable, proactive, and coordinating the whole family. For complex or multi-system cases.

    See how it works

Still unsure which rung? Book a call to get started with the doctors — they'll tell you if none of them fit.

FIND YOUR ROOT CAUSE

Not sure where to start?

12 questions. Your archetype. The Pattern Web showing where the load actually lives across body, mind, relationship, family, and work. Results on screen.

Stop guessing — decode the root cause

DNA Precision · your DNA stressor + biomarker roadmap