Mari and Majo

B12 is stored in the liver. The body stores up to one year's worth.

A couple months of folate (B9) is stored in tissues.

B1, B2, B6 wash out and must be consumed daily.

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Majo,

Just three days worth of B vitamins might be too little time to see results if you have a deficiency in one of them. Magnesium and a little zinc might help. Magnesium is especially likely to be implicated in tics/twitches. B6 is directly implicated in nervous system function, with the B vitamins in general being functional cofactors.

If you eat meat, it is highly unlikely you are B12 deficient.

waves