what size needle should be used for b12 injections Injection? what size needle do i

Walking time: 7 hours

[3] Thiamine (vitamin B) is required for carbohydrate metabolism

This is a commonly referenced study from 1963 claiming a half-life of 5-6 days: nature.com/articles/198200a0 Although I would not cite it as an authority, the six-day half-life has also made it onto the B12 page in Wikipedia, seemingly unchallenged

Not the exact clock time

Vitamin B plays a crucial role in the management of several diseases by supporting key bodily functions such as metabolic processes and cellular health

Because branded and regional formulations vary, you must follow the specific dosing instructions provided by your clinician and the local product labeling