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However, research supporting their efficacy is limited, and they are generally not recommended for those with severe deficiencies
Then, they go to weekly and then monthly
1 Latin American countries have a clinical or subclinical deficiency rate of approximately 40%
The NHS advises that taking up to 2 mg (2000 micrograms) daily is unlikely to cause harm in healthy individuals
These are research figures, framed for research use only
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