This sustained absorption profile makes shots well suited for routine maintenance and diagnosed deficiencies like pernicious anemia, particularly when only B12 replenishment is needed
With injections, the digestive system is bypassed, delivering immediate and more reliable results
If youve been feeling fatigued, a B12 shot can help restore depleted energy levels and make a noticeable difference in how you feel
Unlike food or oral supplements, vitamin B12 injectionswhich are injected under the skin or directly into the musclebypass your gut and go directly into your bloodstream to help counteract the effects of a deficiency, says Foxx
In most cases, people get enough vitamin B12 and other nutrients from their diet
Many practitioners also recommend not washing B12 down with strong coffee or energy drinks, especially if you are sensitive to caffeine or prone to stomach upset. Can You Take Vitamin B12 with Other Supplements