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Minimizing Methylmalonic Acid Levels A potential problem with the IOMs method for determining B12 requirements (see Institute of Medicines Recommendations above), is that a small percentage of people with neurological symptoms of B12 deficiency have normal blood parameters, including 13% of patients in one series of case studies (Lindenbaum, 1988)
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They also play an important role in the production of brain messengers known as neurotransmitters
Characteristic symptoms of vitamin C deficiency include: swollen and bleeding gums fatigue poor wound healing joint pain loose teeth colored spots on the skin In some cases, signs of scurvy can occur within a month of consuming less than 10 milligrams (mg) per day of vitamin C
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