Nutritional Testing
Diagnostics · VEI Clinic, Gangnam, Seoul

Quick Intro
VEI Clinic Apgujeong is an English-friendly internal-medicine clinic offering targeted nutritional evaluations—from blood tests to step-by-step plans and follow-up.
Who This Helps
- Fatigue, brain fog, hair/nail concerns
- Vegetarian/vegan or low-animal-protein diets without regular supplementation
- Malabsorption risks: IBD, celiac, gastric bypass, chronic gastritis
- Long-term use of metformin or acid suppressants (PPIs/H2 blockers)
- Athletes or high-output lifestyles; pregnancy planning
- “I want a clear, evidence-based supplement plan (not a random mega-dose).”
What We Test (Tailored—No Junk Panels)
Core status & anemia
- CBC, iron panel (ferritin, iron/TIBC or transferrin saturation)
- Vitamin B12 ± MMA and homocysteine when indicated
- Folate (RBC/serum as appropriate)
- Vitamin D (25-OH D)
Minerals & micronutrients (case-by-case)
- Magnesium, zinc, copper, selenium
- Thiamine (B1), B6, vitamin A/E/K (selective)
- Omega-3 index for some patients (send-out)
Metabolic context
- CMP (kidney/liver), lipids, HbA1c, CRP (inflammation)
- Thyroid panel (TSH ± FT4) when symptoms point to it
What You’ll Get (Beyond Numbers)
- A plain-English report highlighting what matters now
- A safe, personalized supplement plan (doses, brands/types, timing with meals)
- Food-first guidance: quick grocery list + meal pattern ideas
- Retest timing (often 8–12 weeks after changes) and when to stop/adjust
Preparation (For Accurate Results)
- Fasting: If lipids or some metabolic markers are included, fast 8–12 hours (water okay).
- Hydrate and schedule a morning draw when possible.
- Supplements: Bring a list. Unless prescribed, pause high-dose biotin and non-essential supplements 24–48 hours before testing (your clinician will give exact instructions).
- Biotin warning: High biotin can interfere with certain lab assays (thyroid/troponin). If you have a scheduled heart/thyroid test, tell us so we can time it safely.
- Do not stop prescription medications unless a doctor instructs you to.
Results & Turnaround
- Most routine panels: 1–3 business days
- Specialized send-outs (e.g., omega-3 index, certain vitamins): 5–14 business days
- Delivery: in-clinic review, secure PDF, or telemedicine follow-up
Safety Notes
- We avoid unnecessary mega-dosing and check for interactions (e.g., zinc ↔ copper balance, vitamin D ↔ calcium, B6 neuropathy risk at high doses).
- Tell us if you’re pregnant/breastfeeding, have kidney/liver disease, a history of kidney stones, or G6PD deficiency.
- Abnormal results (e.g., severe anemia, very low/high electrolytes) are managed with medical treatment and follow-up, not just supplements.
What to Bring
- Medication & supplement list (exact brands/doses)
- Any recent labs or prior diagnoses
- A brief diet snapshot (typical day + any restrictions)
Pricing & Transparency
We quote before testing. Costs vary by the tests you actually need. Itemized English receipts are available for insurance claims.
Disclaimer
This page is informational and not medical advice. Testing is chosen after clinician review; emergencies require immediate ER care.
Questions
Should I stop all supplements before testing?
Not always. We’ll advise which to pause (e.g., biotin) and which to continue. Don’t stop prescription meds unless told.
Do you offer “intracellular” or RBC mineral tests?
Sometimes (e.g., RBC magnesium)—but we discuss limitations and always interpret results in clinical context.
Can you do an omega-3 index?
Yes (send-out). We’ll advise on dosing of EPA/DHA if indicated.
How often should I retest?
Commonly 8–12 weeks after changes; sooner or later depending on the marker and your goals.
Do you do hair mineral testing?
Generally no; it’s prone to contamination and hard to interpret for medical decisions.
Plan your visit
3F, Beneheim City, 162 Apgujeong-ro, Gangnam-gu, Seoul. About a one-minute walk from Exit 5 of Apgujeong Station (Line 3).
- Mon · Thu · Fri
- 10:00 – 19:00
- Tuesday
- 10:00 – 20:00
- Saturday
- 10:00 – 16:00
- Lunch break
- 13:00 – 14:00, except Saturday
- Wed · Sun
- Closed
Bring your passport or ID, a list of medicines and allergies, and any recent results. For chest pain, severe breathing difficulty or signs of stroke, call 119 or go to the nearest emergency department.


