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Low B12 levels
Hello Doctors, how many b12 injection doses required and what is the frequency of dose if b12 reading is 120
Answers (7)
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Kindly consult with physician doctor .
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For costimized diet plan according to ur body type connect with me through practo.
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Please ask me directly for details and personalized diet plan
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Hello,
For a Vitamin B12 level of 120 pg/ml, it indicates moderate to severe deficiency.
Recommended BL-2 (Vitamin B12) injection schedule:
â¡ï¸ Dose & Frequency
1. Loading Phase (to correct deficiency):
1 injection every week for 6 weeks
(BL-2 / Methylcobalamin 1500 mcg IM or as per brand strength)
2. Consolidation Phase:
1 injection every 15 days for 2 months
3. Maintenance Phase:
1 injection monthly for 3â6 months
(especially if patient has gastritis, poor dietary intake, or absorption issues)
â¡ï¸ Additional Advice
Start B-complex tablets daily for 3 months.
Recheck Vitamin B12 after 12 weeks.
If symptoms like tingling / fatigue are present â continue monthly dose longer.
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A Vitamin B12 level of 120 pg/mL is considered low, and supplementation is required. However, the exact number of injections and frequency is decided by a physician, as it depends on the cause of deficiency (dietary deficiency vs. absorption issues like gastritis, PPI use, gut disorders, etc.).
As a dietitian, I can guide you that B12 injections are commonly given in the following pattern (doctor decides the final protocol):
Loading phase: 1 injection every week for 4–6 weeks
Maintenance phase: 1 injection every month for 3–6 months
Along with injections, improving dietary intake is important.
B12-rich foods (vegetarian options):
Fortified cereals
Milk and milk products
Paneer, curd
Nutritional yeast
If non-vegetarian: eggs, fish, chicken
Next Steps
Please consult your physician to finalise the injection schedule based on your medical history and symptoms. Also, repeat B12 levels after 6–8 weeks to monitor improvement.
Health Tips
Avoid self-medicating with injections. If you have gastritis, acid reflux, or take antacids frequently, discuss these with your doctor since they can reduce B12 absorption.
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Ms. Somya Jain
Dietitian/Nutritionist
9 yrs exp
Delhi
Better to discuss over consultation instead of general questions section
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Ms. Samriddha Dasgupta Sarkar
Clinical Nutritionist
22 yrs exp
Kolkata
Please consult a physician
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Ms. Trupti Padhi
Dietitian/Nutritionist
16 yrs exp
Bhubaneswar
Good evening pls connect to physician for that.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.