When B12 levels are low, the signs can be varied: Anemia: fatigue, weakness, pale skin, and dizziness Fatigue: a deep-seated weariness that doesn't improve with rest Nerve Damage: tingling or numbness in hands and feet, balance problems, and memory loss (seek medical advice promptly) Mood Disturbances: depression, irritability, and personality changes Who Is Most at Risk for B12 Deficiency
This vitamin is then bound to transcobalamin II and transported to the liver and other tissues, where it acts as a coenzyme for crucial biochemical reactions necessary for blood formation and proper brain and nervous system functioning
In a 2018 review, researchers found evidence that taking 1,000 mcg of B12 and getting B12 injections had similar effects on treating B12 deficiencies
During these four weeks, expect mild appetite suppression