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The stores are franchised

Because crystalline formulations are better absorbed than naturally occurring vitamin B 12 , patients older than 50 years and strict vegetarians should consume foods fortified with vitamin B 12 and vitamin B 12 supplements, rather than attempting to get vitamin B 12 strictly from dietary sources

Injections or vitamin drips are also offered by naturopathic doctors and spas promising instant results

This is not inherently dangerous

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In most other cases a dose of 250 mcg/day may be used