Pregnenolone
The upstream 'mother' steroid, made from cholesterol, from which DHEA, progesterone, cortisol, testosterone and estrogen are all derived.
Sits at the very top of the steroid cascade. Often low in chronic stress, aging, and in people on statins or exogenous hormones — and it's independently studied for cognition and mood.
Optimal ranges, root causes, and the complete correction protocol — nutrition, supplements, lifestyle, hormones and peptides — plus 100+ other markers.
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🩸 Test your Pregnenolone
Order directly through Marek Diagnostics — no doctor's visit needed, drawn at any Quest location in the US. Code CAMERON applies 10% off automatically.
Order this test — 10% off → Browse all 102 markers →What Pregnenolone is usually tested alongside
On its own, one marker is a data point. These panels include Pregnenolone plus the markers that make it interpretable — each names every test, why it is on the list, and loads the whole set into your cart in one click at 10% off.
includes this + 7 more markers — Wired-and-tired, crashing mid-afternoon, salt cravings, dizzy on standing, or you've been told you have 'adrenal fatigue'.
Why your Pregnenolone might be wrong
Most abnormal results are interference, not disease. These are the things that measurably move this specific marker — check them before you change anything. Each one says whether the number is wrong and should be repeated, badly timed and should be redrawn, or real with a cause worth explaining.
Follows a daily rhythm with a morning peak, so a value drawn at 8am and one drawn at 2pm are not comparable numbers.
Draw between 7 and 9am, and use the same window every time you retest.
Pregnenolone assays are less standardised than the major hormones and between-lab agreement is poorer.
Treat a single value with caution and stay with one lab.
Both raise measured pregnenolone directly, and absorption varies enough between people that the rise is unpredictable in size.
Stop supplements a week before if the question is your own production.
What Pregnenolone means in combination
A single marker tells you a little. Combinations tell you the story — these are the named patterns this marker takes part in, and what each one points at.
The single most important pairing in adrenal medicine and the reason cortisol alone is close to useless. High ACTH with low cortisol means the gland is failing and the pituitary is compensating — primary adrenal insufficiency. Low or inappropriately normal ACTH means the signal never arrived, which is a pituitary problem with a different workup entirely.
Either way this is a doctor, promptly — untreated adrenal insufficiency can kill in a crisis. Check sodium and potassium on the same CMP: low sodium with high potassium supports the primary pattern.
What to test next
Markers rarely answer alone. These are the ones that put Pregnenolone in context — each with its own full breakdown.
Frequently asked questions
Roughly 10–200 ng/dL (assay dependent, wide range) Ranges vary by laboratory and assay — always compare to the range printed on your own report.
Optimal ranges, root causes and the full correction protocol are available inside Coach Cam's Peptide Academy.
See the full breakdown inside the Academy.
See the full breakdown inside the Academy.
You can order Pregnenolone directly through Marek Diagnostics without a doctor's visit — drawn at any Quest Diagnostics location in the US. Code CAMERON applies 10% off automatically.