Vitamin B12 (Cobalamin)
A critical vitamin for energy, nerve health, and brain function — and one that a surprising number of people are quietly deficient in, especially vegetarians and older adults.
Benefits
- +Essential for healthy nerve function and myelin production
- +Supports red blood cell formation and prevents anemia
- +Plays a key role in energy metabolism
- +Important for cognitive function and memory
- +Helps regulate homocysteine levels (heart health marker)
- +Supports mood and may help with depression
Dosage & Cost
Methylcobalamin is the most bioavailable form. If you're vegan or vegetarian, B12 supplementation is essentially non-negotiable. Get blood levels checked if unsure.
Side Effects
- !Rarely causes side effects — it's water-soluble so excess is excreted
- !Possible acne breakouts in some people
- !May mask symptoms of folate deficiency if taken alone
- !Allergic reactions are extremely rare
Food Sources
- • Beef and red meat
- • Eggs
- • Dairy products (milk, cheese, yogurt)
- • Fish and shellfish
- • Fortified plant milks and cereals
- • Nutritional yeast (for vegans)
References & Links
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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.