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how many injections of vitamin b12 are required Injection Dosage for Adults: Guidelines Best Vitamin B12 Injection Site:
Description
Before receiving folic acid or methylcobalamin, patients should be assessed for deficiency and appropriate therapy started concurrently

Also, it influences the growth of strong nails and shiny hair

16 In this study, where the children were supplemented daily with two recommended daily allowances (RDA) for 6 months, the effect of vitamin B 12 supplementation was more apparent in children who had evidence of vitamin B 12 deficiency at the start of the study

Thus, megaloblastic anemia should not be treated with folic acid until the underlying cause has been determined (20)
