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Diagnosis is not always straightforward as serum levels can be falsely high or normal. [10] Elevated methylmalonic acid levels may also indicate a deficiency. [2] Individuals with low or marginal values of vitamin B 12 in the range of 148–221 pmol/L (200–300 pg/mL) may not have classic neurological or hematological signs or symptoms. [2]
Normal MMA levels indicate folate deficiency and elevated MMA levels indicate vitamin B 12 deficiency. [98] Elevated MMA levels may also be due to the rare metabolic disorder combined malonic and methylmalonic aciduria (CMAMMA). [117] [118] Folate deficiency is treated with supplemental oral folic acid of 400 to 1000 μg per day.
However, elevated MMA is not conclusive, as it is seen in people with B 12 deficiency, but also in elderly people who have renal insufficiency, [28] and elevated homocysteine is not conclusive, as it is also seen in people with folate deficiency. [52] In addition, elevated methylmalonic acid levels may also be related to metabolic disorders ...
Look for these warning signs of vitamin B12 deficiency. You could be experiencing both mental and physical symptoms. ... A vitamin B12 level of less than 200 pg/mL is considered deficient ...
As a consequence of the biochemical reactions in which homocysteine is involved, deficiencies of vitamin B 6, folic acid (vitamin B 9), and vitamin B 12 can lead to high homocysteine levels. [2] Other possible causes of hyperhomocysteinemia include genetics, excessive methionine intake, and other diseases.
Prolonged deficiency of vitamin B 12 leads to irreversible nervous system damage. HIV-associated vacuolar myelopathy can present with a similar pattern of dorsal column and corticospinal tract demyelination. [citation needed] It has been thought that if someone is deficient in vitamin B 12 and folic acid, the vitamin B 12 deficiency must
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Loaded with B2, B6, B12 and folate, this multipurpose supplement will help cover your bases if you are diagnosed with multiple B deficiencies. Some oral contraceptives and anti-inflammatory ...
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