What's the Best B12 Vitamin on the Market? Your 2025 Guide
                                
                                
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                                    4 min read                                
                            
                                According to research published in the National Institutes of Health, vitamin B12 deficiency affects a significant portion of the population, especially older adults and vegans. Finding the best B12 vitamin involves understanding different forms, delivery methods, and verifying third-party testing for quality assurance.