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Fortified breakfast cereals are also popular, but make sure to choose options that are low in sugar and high in fiber, such as oat-based cereal and raisin bran

The real question is how fast can vitamin B12 energy shots flip your energy switch

Get access to cutting edge longevity medicine without leaving the couch Sources: National Library of Medicine, American Journal of Preventative Medicine The above statements are sourced from scientific studies and have not been evaluated by the Food and Drug Administration

If left untreated for a long time, a severe vitamin B12 deficiency can cause irreversible damage to nerve cells