Vaughan, MD , the director of the Potocsnak Longevity Institute at Northwestern Universitys Feinberg School of Medicine in Chicago
The peace of mind is the entire point
It's important to remember that individual responses differ, and factors like overall health, diet, and the severity of any B12 deficiency can influence how quickly changes become noticeable
If you have Pernicious Aneamia then it is possible you have other autoimmune conditions, for instance Hashimotos (where the immune system attacks the thyroid), type 1 diabetes, Sjogrens Syndrome etc
Higher doses mean you might use more water for convenience
Localized infections usually respond well to treatment with antibiotics when caught early