Vitamin B ComplexIf you think you may need more than one B vitamin, you could look at a B complex instead, which provides a mixture of all the B vitamins, so you can benefit from all of them. There are many types of B complex supplements available i.e. high-strength, sustained release and ones that include some activated B vitamins i.e. methylfolate and methylcobalamin. Activated B vitamins are biologically active in the body and generally do not require any metabolic or enzymatic conversion before they can be used by the body.
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