vitamin b12 injections and menstrual cycle can affect your A missed period is not the end of the An Overview of the Impact
Description
Dietary adjustments may be an alternative if you are not severely deficient.

For the older patients (60+ years) specially with arteriosclerosis, possibility of circulatory collapse after administration should be kept in mind (30)

For example, individuals with pernicious anemia may absorb only 1-2% of oral B12, while IV therapy ensures nearly full absorption
B12 reduces dry skin and acne, and promotes healthy skin
(Updated August 17, 2023)

Instead, most people may only experience chronic fatigue or frequent headaches from B12 deficiency
