Research has shown that people who frequently complain of headaches often have low levels of vitamin B12. A 2019 study found that half of the women who suffered from migraines had low B12 levels. While more research is needed to determine whether vitamin B12 treatment can improve migraine symptoms, preliminary results are promising.
Irregular heartbeat
A rapid or irregular heartbeat, known as tachycardia, can occur with a vitamin B12 deficiency. Low B12 levels can lead to megaloblastic anemia, causing dizziness, fatigue, loss of appetite, and heart palpitations. Palpitations occur when
