B12 supports mitochondrial function and cellular energy production through its role in fatty acid oxidation and the citric acid cycle
This is important because energy production isnt just about caloriesits about how efficiently your body uses them
Some patients are trained to self-inject after the first few doses at the clinic
You may need B12 injections if you: Have been diagnosed with pernicious anemia Have gastrointestinal issues (e.g., Crohns disease, celiac disease, or after bariatric surgery) Follow a strict vegan or vegetarian diet without adequate supplementation Are over the age of 50, as absorption decreases with age Take certain medications that interfere with B12 absorption Have chronic fatigue, memory issues, or nerve problems due to B12 deficiency
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It helps prevent anemia, a condition in which your blood does not have enough healthy red blood cells