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The Importance of Vitamin B12

Do you know what can be a common thread among chronic disease such as:

  • Alzheimer’s

  • Dementia

  • Cognitive Decline and Memory Loss

  • Neurological Disorders

  • Depression; Anxiety; Bipolar Disorder

  • Developmental Disorders in Children

  • Autism

  • Multiple Sclerosis (MS)

  • Cancer

  • Infertility

  • Cardiovascular Disease

  • Autoimmune Disease

  • Immune Dysregulation

The answer: each may resemble the signs and symptoms of vitamin B12 deficiency.

B12 deficiency occurs in four stages, beginning with declining blood levels of the vitamin (stage I), progressing to low cellular concentrations of the vitamin (stage II), an increased blood level of homocysteine and a decreased rate of DNA synthesis (stage III), and finally, macrocytic anemia (stage IV).


While mild deficiency may cause no symptoms, if left untreated, it may lead to symptoms such as:

  • A smooth tongue

  • Constipation, diarrhea, loss of appetite, or gas

  • Heart palpitations and shortness of breath

  • Mental problems like depression, memory loss, or behavioral changes

  • Nerve problems like numbness or tingling, muscle weakness, and problems walking