May 17, 2025
Why you might lack B12: Absorption issues, age & medications
Siddhartha JanaB12 deficiency is rising
Vitamin B12 deficiency is increasingly common—even among meat-eaters—due to factors like poor absorption and aging.
Source: Canva
Absorption issues matter
Conditions like anemia, celiac, Crohn’s, or long-term medication use can hinder B12 absorption in the digestive tract.
Source: Canva
Stomach acid declines with age
As people age, reduced stomach acid affects the body's ability to extract B12 from food, lowering its levels.
Source: Canva
Certain medications interfere
Drugs like PPIs, H2 blockers, and metformin can reduce stomach acid or alter absorption, leading to deficiency.
Source: Canva
Cooking affects B12 levels
Overcooking or using very high heat can destroy B12 in food, reducing its nutritional value.
Source: Canva
Type of meat matters
Organ meats like liver are richer in B12 than muscle meats like chicken or beef, making them more effective sources.
Source: Canva
Watch for deficiency symptoms
Low B12 can cause fatigue, memory problems, numbness, and mood swings—signs that need attention.
Source: Canva
Get tested and treated
A blood test can confirm deficiency. Treatment may include diet changes, supplements, or B12 injections under medical advice.
Source: Canva
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