can a b12 injection make you feel sick Are Shots Safe? Royal Palm Beach Medical Group How Long Does a B12

In some cases, a doctor may refer a person to a specialist, such as: a nutritionist or dietitian a hematologist, who specializes in treating blood conditions a gastroenterologist, who specializes in treating gastrointestinal (GI) conditions The table below contains the However, a doctor can advise on an individuals specific needs

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Folate supplementation must not be started before B12 deficiency is treated, as this can precipitate or worsen neurological complications

If left unattended, the deficiency can lead to anemia, as well as nerve and brain damage, which may eventually become irreversible