Yes, Vitamin B12 supports the immune system by aiding in the production of white blood cells, which help protect the body against infections
This is because Vitamin B12 plays a crucial role in cellular metabolism and red blood cell production, which helps transport oxygen throughout your body
[6] [25] At levels only slightly below normal, deficiency can result in fatigue, headaches, feeling faint, rapid breathing, pale skin, numbness or tingling, poor appetite, heartburn, poor balance, difficulty walking, poor reflexes, blurred vision, memory problems, depression, irritability, inattention, cognitive decline, dementia, and even psychosis
Here are some general guidelines: Mild Deficiency: For those with a mild deficiency, a typical dosage might be 1,000 micrograms (mcg) once a week for several weeks