First described back in the 1950s, acne erupts in about one in ten people within days or even hours of getting an injection of vitamin B12, which then disappears rapidly when injection treatment is discontinued. At the time, we had no idea what the mechanism might be, and the problem remained unsolved until just a few years ago when we finally figured it out: Vitamin B12 modulates the gene expression of the skin bacteria that cause acne
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28 Bertoglio, K., Jill James, S., Deprey, L., Brule, N
There are many B12 deficiency signs and symptoms, including: Numbness Tingling, pins and needles Weakness, dizziness High homocysteine, low methionine Megaloblastic macrocytic anaemia Mild or moderate leukopenia (low white blood cells) Mild or moderate thrombocytopenia (low platelets) Enlarged red blood cells (macrocytosis) Abnormal white cell (neutrophils) Chronic fatigue or tiredness General weakness or lethargy General Signs and Symptoms: Ataxia, (unsteady walking) Paresthesia (prickling sensation) and weakness in peripheral nerves Confusion Infertility Vision loss Leg pains Shortness of breath Loss of appetite/weight loss Epigastric pain Osteoporosis Increased susceptibility to infection Failure to thrive in infants Vitiligo Premature greying of hair Burning feet Mental Changes Depression (including postpartum depression) Irritability Apathy Psychosis Sleepiness Suspiciousness (paranoia) Personality changes Memory loss Dementia, intellectual deterioration Hallucinations Violent behaviour Developmental delay and/or autistic behaviour in children Neurological signs and symptoms Abnormal sensations ie: pain, tingling, numbness of legs, arms, trunk A diminished sense of touch, pain and/or temperature Loss of position sense (awareness of body position) Weakness of limbs Clumsiness Tremor Symptoms mimicking Parkinsons disease or MS Spasticity of muscles Incontinence (urine or stool) Paralysis Vision changes Damage to the optic nerve neuritis, inflammation, atrophy Vascular Problems Transient ischemic attacks (TIAs) Cerebral vascular accident Coronary artery disease Myocardial infarction Congestive heart failure Palpitations Orthostatic hypotension Deep vein thrombosis Pulmonary embolism 7 Why is B12 deficiency often underdiagnosed
