Vitamin B12 Normal Range — B12 Deficiency Levels
Understand your Vitamin B12 Test report — normal values, what abnormal results mean, and when to get tested.
What is Vitamin B12 Test?
Vitamin B12 (cobalamin) is essential for making red blood cells, keeping nerves healthy, and producing DNA. The body cannot make B12 — it comes only from animal foods such as milk, curd, paneer, eggs, meat, and fish, or from supplements. Because of this, B12 deficiency is extremely common among vegetarians in India, affecting nearly half of the population in some surveys. Low B12 causes tiredness, tingling or numbness in the hands and feet, memory problems, mouth ulcers, and a type of anaemia where red cells become large (high MCV on CBC). The vitamin B12 test measures the level in blood and is often ordered along with CBC.
Vitamin B12 Test Normal Range Chart
| Parameter | Normal Range | Unit |
|---|---|---|
| Vitamin B12 — Deficient | Below 200 pg/mL | pg/mL |
| Vitamin B12 — Borderline / Insufficient | 200–300 pg/mL | pg/mL |
| Vitamin B12 — Normal | 300–900 pg/mL | pg/mL |
| Vitamin B12 — High | Above 900 pg/mL | pg/mL |
| MCV on CBC (linked marker) | 80–100 fL | fL |
| Folate (Vitamin B9, often tested together) | 3–17 ng/mL | ng/mL |
| Homocysteine (if B12 borderline) | 5–15 µmol/L | µmol/L |
* Reference ranges may vary slightly between laboratories. Always interpret results with your doctor.
What Do Abnormal Results Mean?
Vitamin B12 — Deficient
—
Anaemia, nerve damage (neuropathy), memory loss, fatigue — needs injections or high-dose supplements
Vitamin B12 — Borderline / Insufficient
—
May have symptoms; doctor may check MMA or homocysteine, or start oral supplements
Vitamin B12 — Normal
Adequate for blood and nerve health
—
Vitamin B12 — High
Usually from recent B12 injections or supplements; rarely liver disease or blood disorders
—
MCV on CBC (linked marker)
Above 100 fL suggests B12 or folate deficiency (macrocytic anaemia)
Iron deficiency (not B12 related)
Folate (Vitamin B9, often tested together)
Supplement use
Poor diet, alcohol use, pregnancy, malabsorption — causes similar anaemia to B12 deficiency
Homocysteine (if B12 borderline)
Functional B12 or folate deficiency, increased heart disease risk
Normal
How to Prepare for Vitamin B12 Test
- ✓Fasting for 6-8 hours is preferred (some labs accept non-fasting)
- ✓Do not take B12 supplements or injections for 24-48 hours before the test unless your doctor says otherwise
- ✓Inform your doctor about metformin, acidity medicines (PPIs), or alcohol use — all lower B12
- ✓Report usually available in 24 hours
When Should You Get Tested?
- •Strict vegetarian or vegan diet
- •Tingling, numbness, or burning in hands and feet
- •Persistent tiredness or weakness
- •Anaemia with high MCV on CBC
- •Memory problems, confusion, or depression
- •Long-term use of metformin (diabetes) or antacids (PPIs)
- •Mouth ulcers, sore red tongue
- •Pregnancy planning or during pregnancy
Vitamin B12 Test Cost in Bhopal
₹600 – ₹1,500
Available at R.K. Hospital, Indrapuri, Bhopal with same-day reports.
View detailed cost breakdown →Frequently Asked Questions
What is the normal vitamin B12 level?
Normal vitamin B12 is 300–900 pg/mL. Below 200 pg/mL is deficient and needs treatment. 200–300 pg/mL is borderline — many people in this range have symptoms and benefit from supplements.
What are the symptoms of B12 deficiency?
Tiredness, weakness, tingling or numbness in hands and feet, difficulty walking or balancing, memory problems, mouth ulcers, pale or yellowish skin, and shortness of breath. Nerve symptoms can become permanent if deficiency is not treated for a long time.
Why do vegetarians have low B12?
Vitamin B12 is found naturally only in animal foods — milk, curd, paneer, eggs, meat, and fish. Plant foods contain almost none. Vegetarians who consume little dairy, and all vegans, are at high risk and often need regular B12 supplements.
How is B12 deficiency treated?
Mild deficiency: oral methylcobalamin 1,500 mcg daily for 2-3 months. Severe deficiency or nerve symptoms: B12 injections (usually 5-6 injections over 2 weeks, then monthly). Recheck the level after 3 months. Vegetarians may need lifelong maintenance.
How much does a vitamin B12 test cost in Bhopal?
Vitamin B12 test cost in Bhopal ranges from ₹600 to ₹1,500. At R.K. Hospital, Indrapuri, B12 is available with CBC and reports in 24 hours. Call 0755-4260605.
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Same-day reports at our in-house pathology lab in Indrapuri, Bhopal. Call, WhatsApp, or walk in; our doctors will explain your report.
226, C-Sector, Indrapuri, Raisen Road, Bhopal (M.P.) 462022 · Directions & timings · 24x7 Emergency
Disclaimer: The normal ranges provided are general reference values. Actual reference ranges may vary between laboratories. Always consult your doctor for interpretation of your test results. This page is for educational purposes only and does not replace medical advice.
Get Tested at R.K. Hospital
Vitamin B12 Test available with same-day reports. Walk-in or book an appointment.
Call: 0755-4260605Get DirectionsQuick Reference
- Test Name
- Vitamin B12 Test
- Fasting Required
- Yes (8-12 hours)
- Cost in Bhopal
- ₹600 – ₹1,500
- Report Time
- Same day
Other Lab Test Guides
- CBC Test (Complete Blood Count) Normal Range
- Thyroid Test (TSH, T3, T4) Normal Range
- Liver Function Test (LFT) Normal Range
- Kidney Function Test (KFT/RFT) Normal Range
- Lipid Profile (Cholesterol Test) Normal Range
- HbA1c (Glycated Hemoglobin) Normal Range
R.K. Hospital Lab
226, C-Sector, Indrapuri, Raisen Road, Bhopal (M.P.) 462022In-house pathology lab with automated analysers. All blood tests, urine tests, and diagnostic imaging under one roof.