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Many patients then receive maintenance injections about once a month (or in some cases every 2-3 months) to keep their vitamin B levels in the normal range
Vitamin B9 or folic acid plays a significant role cellular repair and the metabolism of homocysteine
Deneke, S
For oral supplementation, 250 to 500 mg per day is the commonly studied range
According to the National Institute of Health, the Food and Nutrition Board (FNB) didnt establish an upper limit for vitamin B12 because of its low risk of side effects
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