vitamin b12 injection dose for women Oral vs. Intramuscular in Vitamin B12 Deficiency • The Blood Project Vitamin B12 Injection Dosage &

Generally, the effects of a B12 injection start to wane after a week

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Severe deficiency leads to megaloblastic anemia, where red blood cells become large and misshapen, causing symptoms like extreme fatigue, shortness of breath and pale skin

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More serious B12 deficiencies have the potential to impair heart and neurological function, leading to a wide range of serious symptoms, including but not limited to: tinnitus, severe joint pain, memory problems, depression, anxiety, poor muscle function, ataxia and changes in reflexes