🧠 Mood, Anxiety & Low Motivation
For everyone · 9 markers · $181.35
with code CAMERON $201.50
Persistent low mood, anxiety, irritability, or motivation that has quietly disappeared — especially if it doesn't match what's going on in your life.
🩸 Order this exact panel — 10% off
All 9 markers load into your cart in one click. No doctor's visit, drawn at any Quest location in the US, results by email in about two weeks. Code CAMERON applies automatically.
Add all 9 markers — $181.35 → Open the full Bloodwork Vault →Why this panel
Several medical conditions produce symptoms indistinguishable from depression and anxiety, and they are all cheap to test for. This panel does not diagnose a mental health condition and does not replace treatment for one — it rules out the physical causes that get missed, so that whatever is left can be treated properly.
What this panel can settle, and by what logic
Nine tests, and their entire purpose is exclusion: finding the medical conditions that present as low mood, flat motivation or anxiety and are treated by something other than psychiatry.
- TSH (Thyroid-Stimulating Hormone) with Free T4 (Thyroxine) is the highest-yield pair, in both directions. Hypothyroidism produces flattened mood and slowed thinking; thyrotoxicosis produces anxiety, tremor and insomnia that is routinely mistaken for an anxiety disorder. Autoimmune thyroid disease is the usual route into the first Klubo-Gwiezdzinska 2022.
- The calcium on the Comprehensive Metabolic Panel (CMP) is the marker nobody looks at and the one with the most specific story. Hypercalcemia causes low mood, fatigue and constipation, and primary hyperparathyroidism is its commonest outpatient cause — which is why a raised calcium here leads to Parathyroid Hormone & Calcium rather than to a second mood panel Shaker 2023. The same panel's sodium, liver enzymes and creatinine cover the other medical mimics.
- Vitamin B12 with Methylmalonic Acid (MMA) and Folate, Serum separates a low number from a real deficiency. Methylmalonic acid rises only when the B12-dependent step has genuinely stalled, so it settles the cases serum B12 leaves ambiguous Harrington 2024.
- Ferritin read against hs-CRP (High-Sensitivity C-Reactive Protein) catches iron deficiency without anemia, a common and easily missed cause of low drive in menstruating women; inflammation inflates ferritin and the CRP is what makes it readable Luo 2023 Cancado 2025.
What it cannot settle, and what would
No blood test diagnoses depression or an anxiety disorder, and none excludes one. Both are defined by symptom criteria over time — duration, number of symptoms, functional impact — and are measured with structured instruments, not assays. Nine normal results here do not mean nothing is wrong; they mean the cause is not on this list, which is the correct and useful conclusion.
Correcting Vitamin D (25-Hydroxy) will not lift your mood. This is the clearest negative result in the area: in 18,353 adults aged 50 and over, followed for a median of 5.3 years, vitamin D3 neither reduced the risk of depression (hazard ratio 0.97) nor changed mood scores against placebo Okereke 2020. Correct a deficiency for bone and muscle; do not buy it as an antidepressant.
It cannot assess risk, which is the one thing that cannot wait. Suicidal thinking, psychosis and mania are identified in conversation and are urgent. If any of those is present, the panel is irrelevant and the appointment is today.
And it cannot see the commonest contributors at all. Alcohol, cannabis, stimulants, hormonal contraception, beta blockers, isotretinoin and chronic sleep loss all produce this presentation, and every one of them is found by a medication and substance history rather than by a tube of blood.
Draw conditions that decide whether the money is wasted
Three instructions, and the first protects the marker most likely to change your treatment.
- 72 hours with no biotin. The thyroid pair is the point of this panel, and biotin at supplement doses pushes TSH (Thyroid-Stimulating Hormone) down and Free T4 (Thyroxine) up on streptavidin-based assays Li 2020. That pattern reads as thyrotoxicosis, which reads as an explanation for anxiety, which is how a supplement becomes a misdiagnosis.
- Morning, and hold B12 supplements for a week. A supplemented serum Vitamin B12 reports the tablet, not the store; Methylmalonic Acid (MMA) is the marker that survives it Harrington 2024.
- Not in the fortnight after an infection, and take the calcium seriously enough to repeat it. Illness raises CRP and inflates Ferritin with it Luo 2023, and a single borderline calcium should be confirmed on a properly collected sample before anyone acts on it Shaker 2023.
How you would know it answered your question, and what each pattern means next
Five results and what each one changes.
- TSH (Thyroid-Stimulating Hormone) outside range: repeat at 8 to 12 weeks with Thyroid Antibodies (TPO + TgAb) before treating. The pituitary needs 6 to 8 weeks to re-equilibrate, and a confirmed mild elevation still often normalizes untreated van der Spoel 2023.
- Calcium above range on the Comprehensive Metabolic Panel (CMP): the one result here that leads somewhere specific. Repeat with an intact PTH Shaker 2023.
- Vitamin B12 low or Methylmalonic Acid (MMA) raised: replace and recheck MMA at 4 weeks; mood response, if it comes, lags the biochemistry by months Harrington 2024.
- Ferritin under 30 ng/mL: treat and retest at 12 weeks Cancado 2025. If it falls again within 6 months, the question is where the iron is going.
- All nine normal: the medical imitators are excluded and the next step is a clinician and a structured assessment. Do not spend the follow-up on vitamin D Okereke 2020.
Sources read for these sections
- Okereke OI, et al. Effect of Long-term Vitamin D3 Supplementation vs Placebo on Risk of Depression or Clinically Relevant Depressive Symptoms and on Change in Mood Scores: A Randomized Clinical Trial. JAMA 2020 · PMID 32749491
- van der Spoel E, et al. Incidence and Determinants of Spontaneous Normalization of Subclinical Hypothyroidism in Older Adults. Journal of Clinical Endocrinology and Metabolism 2023 · PMID 37862463
- Harrington DJ. The application and interpretation of laboratory biomarkers for the evaluation of vitamin B12 status. Annals of Clinical Biochemistry 2024 · PMID 39367523
- Cancado RD. Defining Global Thresholds for Serum Ferritin: A Challenging Mission in Establishing the Iron Deficiency Diagnosis in This Era of Striving for Health Equity. Diagnostics (Basel) 2025 · PMID 39941219
- Shaker JL, Wermers RA. The Eucalcemic Patient With Elevated Parathyroid Hormone Levels. Journal of the Endocrine Society 2023 · PMID 36793479
- Li D, Ferguson A, Cervinski MA, Lynch KL, Kyle PB. AACC Guidance Document on Biotin Interference in Laboratory Tests. J Appl Lab Med 2020 · PMID 32445355
- Klubo-Gwiezdzinska J, Wartofsky L. Hashimoto thyroiditis: an evidence-based guide to etiology, diagnosis and treatment. Polish Archives of Internal Medicine 2022 · PMID 35243857
- Luo H, et al. A Practical Guide to Adjust Micronutrient Biomarkers for Inflammation Using the BRINDA Method. Journal of Nutrition 2023 · PMID 36792034
The 9 markers — and why each one is here
Hypothyroidism presents as depression more often than as thyroid symptoms
Low folate is independently associated with depression and poor antidepressant response
Glucose, electrolytes, liver and kidney — all affect mood and cognition
Inflammation is consistently associated with depressive symptoms
Ordering the panel tells you your numbers. The protocol tells you what to do with them — the four treatable conditions that hide behind "it's probably just depression", why the standard B12 test reads normal in real deficiency, the exact omega-3 formulation the trials support and why most fish oil is the wrong one, and the effective herb with a dangerous interaction list.
Join Skool — $10/mo →What this panel is ordered to decide
A panel is a set of numbers until it settles something. These are the decisions this one feeds — each links the pathway it belongs to, what that pathway claims, and what its test list is read for.
Hyperthyroidism presents as anxiety with a racing heart and gets treated as a mental-health problem for months. One TSH rules it out.
Every substrate this pathway needs is testable, and three of them are commonly low. Correct those before layering a serotonergic on top — especially given the interaction risk if you are already on an SSRI.
Related panels
Frequently asked questions
9 markers: TSH (Thyroid-Stimulating Hormone), Free T4 (Free Thyroxine), Vitamin B12, Methylmalonic Acid (MMA), Folate, Serum, Vitamin D (25-Hydroxy), Ferritin, Comprehensive Metabolic Panel (CMP), hs-CRP (C-Reactive Protein, High Sensitivity).
$201.50 before discount, $181.35 with code CAMERON applied automatically. Individual markers add a one-time $10 draw fee. Ordered through Marek Diagnostics and drawn at any Quest Diagnostics location in the US.
No. These are ordered direct-to-consumer through Marek Diagnostics — you order online, walk into a Quest location, and results are emailed to you in about two weeks. No physician visit or insurance required. Not available in NY, NJ or RI.
Morning, fasted. Off biotin 72 hours — it corrupts thyroid results and thyroid is the main thing you're looking for.
Raised TSH or low free T4 → thyroid, treatable. Low B12 or raised MMA → correct it and reassess in 12 weeks. Ferritin under 30 → iron deficiency causes real mood symptoms. Low vitamin D is common and worth correcting. Low testosterone in men causes flat mood and low drive. If everything here is normal, that is useful information too — it points the conversation back where it belongs.
Where this goes next
This page is how to read the panel. What to DO about each result — the dosing, the order to correct things in, the week-by-week schedule and what to retest — is a lesson inside Skool.