4 min read

Your Doctor Probably Isn’t Checking This. I Had to Find It Myself.

Drug-induced nutrient depletion: Why the gap between effort and outcome isn’t your fault.
Your Doctor Probably Isn’t Checking This. I Had to Find It Myself.
Photo by Trey Gibson / Unsplash

The PPI Was Supposed to Manage Reflux

It gave me osteopenia, drained my B12, and it didn't fix a damn thing. What I thought was a diagnosis was a guess. The "treatment" made me weaker, less capable, and induced frailty. For no good reason.

It was actually a hiatal hernia and Barrett's Esophagus, dismissed for years as stress or acid. Wrong diagnosis, wrong treatment, real consequences, some still unfolding. The first endoscopy showed precancerous changes.

I'm on endoscopic cancer surveillance every six months now.

You're fighting to stay upright, eating carefully, rebuilding slowly. While something in the background quietly pulls the floor out from under you.

Not labeled. Not flagged. Just accumulating. That was one drug, among many others. Nobody was looking at the whole list.

I only found the nutrient piece by stumbling onto a chart for clinicians. It wasn't for me, it wasn't handed to me. I found it in desperation, looking for answers.

Why It Happens

Long-term medications can interfere with absorption or increase excretion of specific nutrients. This isn't a typical "side effect." It builds slowly, mimics symptoms you already have, and gets attributed to the illness or to stress.

Here's what that leak can look like in practice:

  • PPIs and antacids reduce B12 and magnesium absorption over time, worsening fatigue and nerve symptoms already common in dysautonomia. If the underlying cause isn't actually GERD, you're absorbing the depletion without the benefit.
  • Corticosteroids impair vitamin D and calcium, quietly, while you're eating the kale.
  • Statins deplete CoQ10, amplifying muscle pain that's already part of the picture.
  • Methotrexate and anticonvulsants drain folate, with downstream effects on mood and cognition.
  • Diuretics pull potassium and magnesium both, which matters enormously in POTS.
None of it inevitable. Most of it testable. Some is fixable.

The Cognitive and Psychological Weight

Low B12 doesn't just cause tingling. It causes brain fog, anxiety, low mood — a flatness that's easy to attribute to depression or disease progression, or as I was told for years, stress.

Magnesium deficiency worsens sleep, irritability, and the nervous system dysregulation already central to dysautonomia.

Folate loss affects neurotransmitter production in ways that quietly erode the mental resilience you need just to manage a chronic illness day.

The cruel part: you're putting in the effort. Kitchen work, planning, the discipline of eating well when you feel terrible. And the output doesn't match. That gap is demoralizing in a specific way.

It can feel like confirmation that nothing works, that your body is beyond help. It's not. It's physics. The bucket has a hole. In my case, the hole had been there for years before anyone looked for it.


You're the Only One in Your Body Full Time

Most physicians receive limited formal training in nutrition — not enough to reliably spot depletion patterns without looking for them specifically. Time, training, and pattern recognition. "Stress" is often the fastest explanation when the picture is complex.

I was told things were fine for years. The depletion chart wasn't given to me. I found it. The precancerous changes were found the same way — after pushing for a scope nobody thought I needed.

You're allowed to be the expert on your own experience.


What To Actually Do

Bring your full medication list — prescriptions, OTCs, anything you take regularly — to your doctor or pharmacist. Ask specifically about depletion, not just side effects. It's a different question, and it gets a different answer.

Request basic labs: B12, vitamin D, magnesium, electrolytes. If you're on a PPI and nobody has checked your B12, flag it.

Start with food. If something shows up low, then consider targeted supplementation. Not guesswork. Confirmation.

A useful question to bring in: "Could depletion be contributing to what I'm experiencing?"

And if a medication isn't treating the right problem, push on that too.

If you're doing everything right and it still isn't working, the problem isn't effort. The bucket has a hole.


Trail-Ready Reference

Med / Situation What Gets Depleted What It Can Mimic
PPIs / antacids B12, Magnesium Fog, neuropathy, fatigue
Steroids / Lupus flares Vitamin D, Calcium Bone pain, weakness
Diuretics / POTS Potassium, Magnesium Palpitations, cramps
Statins CoQ10 Muscle pain, fatigue
Methotrexate Folate Mood changes, brain fog, anemia
Antibiotics (long-term) B vitamins, Vitamin K Fatigue, mood, gut issues

More Resources:

AAFP: Drug Nutrient Depletions
U.S. Pharmacist: Drug-Induced Nutrient Depletions
Mayo Clinic: Heartburn medicines and B-12 deficiency
PubMed: PPIs & B12 Deficiency
PubMed: Drug–Nutrient Interactions with Chronic Use


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* Peer reflection, not medical or nutrition advice. Your body is yours — what works for me may not work for you. *