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After that, you may shift to once-a-week injections for one to two months, and then to the maintenance phase, where you receive monthly injections

The side effect profiles of these two compounds are dramatically different, and for some people, that difference tips the scale

But despite the sudden surge in popularity, its actually not a new ingredient

Fortunately, there is increasing evidence that oral B12 supplements are just as good as injections for raising blood levels in most people ( Vegetarians and vegans are usually advised to take at least 10 mcg per day, or at least 2,000 mcg once per week ( However, some doctors still prefer the use of injections