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Some common side effects of Vitamin B12 include headache, nausea, anxiety, nervousness, diarrhea, swelling, infection, severe itching of skin, loss of coordination and balance
Effect of Dietary Pyrroloquinoline Quinone Disodium Salt on Cognitive Function in Healthy Volunteers: A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study
Clinical Evidence: B12 Effectiveness for Different Types of Nerve Pain Vitamin B12 is being used more to treat nerve pain
Mol Nutr Food Res 2010
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