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vitamin b12 injection flushing warmth side effect Raynaud's Syndrome What Causes Niacin Flush and
Description
You need B12 to think clearly, move with strength, and recover from workouts
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Sub q should in theory give close to 100% bioavailability, but we really dont know the one PK study never tested it, so theres no measured number and no dosing conversion behind it

In this cycle, it serves as a cofactor to allow conversion, so a deficiency of B12 or folate can interfere with the conversion and lead to a buildup of homocysteine 1

If you are deficient, the NHS will treat you
