b12 injections cyanocobalamin Vitamin Injectable Solution for Horses, 5000-mcg, 100-mL - Easy Refills stomach/intestinal problems aluminum in b12 injections Shots

Insufficient intrinsic factor production, common in older adults due to age-related absorption decline, can also lead to deficiency

Injections can be done at home or in your doctors office, intramuscularly or subcutaneously

Oral vitamins must get broken down by the GI tract (through the stomach, and intestines) and then go through the liver for metabolizing

If this aligns with your goals, well develop your treatment plan at your initial consultation

At 75mg daily, most protocols observe metabolic effects within 24 weeks

Oral Supplements Cyanocobalamin tablets (common) Methylcobalamin (easier to absorb) B12 sprays or dissolvable tabs Pros: Easy to take No needles Affordable Cons: Absorption varies Not ideal for GI conditions Food Sources Liver (highly concentrated) Eggs Red meat Cheese Shellfish and fish Plant-based