Metformin and Vitamin B12 Deficiency

General
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Taking metformin? Your energy, nerves, and memory might be silently warning you and it could be Vitamin B12 deficiency.

Long-term use of metformin in Type 2 Diabetes is associated with Vitamin B12 deficiency due to reduced intestinal absorption.

Who Should Watch For It?:thinking:

  • Long-term use (>3–5 years) :hourglass_not_done:
  • Higher doses​:pill:
  • Older adults :old_woman::old_man:

Symptoms Across Ages

  • Young adults: Fatigue, brain fog, hair fall
  • Middle age: Numbness, tingling, weakness
  • Older adults: Balance issues, confusion, anemia

Why It Matters

An untreated deficiency may cause:

  • Peripheral neuropathy
  • Cognitive decline​:brain:
  • Anemia​:drop_of_blood:
  • Irreversible nerve damage​:x_ray:

Treatment:

Mild deficiency

  • Oral Vitamin B12 supplementsB12 :pill:
  • Diet (dairy, eggs, fortified foods):egg::glass_of_milk::fish:

When Injections Are Needed​:syringe:

  • Very low B12
  • Neurological symptoms
  • Poor oral absorption

Key Takeaway:

Patients on long-term metformin should consider periodic B12 monitoring.

Blood test: Serum Vitamin B12 level. Consider every 1–2 years in long-term metformin users. :stethoscope:

Ref:

:love_letter: Send this to a loved one on metformin it might help them catch it early.:heart:

MBH/PS

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Very insightful.