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Since vitamin B12 is still necessary for bodily health, deficiency in this key vitamin can lead to a number of negative symptoms, including: However, since vitamin B12 is necessary for so many vital things, symptoms can vary from individual to individual

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People are getting B12 injections to gain strength, lose weight, and improve their brain functioninga few benefits of vitamin B12

Find out what current evidence suggests in the Vitality and Mood section of our Vitamin C Supplements Review, which includes a list of foods high in vitamin C and our Top Picks for vitamin C