Metallic Taste in Mouth: Common Causes Vitamin B12 is essential for good health, but some people may not be getting enough. Learn about the symptoms of a vitamin B12 deficiency and how it can be treated: https: wb.md 3XH8ks6 Why does Paxlovid make things taste bitter? Science AAAS Vitamin Therapy and B12 Injections Near me Direct Aesthetics Vitamin B12 is essential for your body's energy production, nerve function, and red blood cell formation. Unfortunately, many people don't realize that they may be lacking this crucial vitamin. If you're experiencing Vitamin B12 deficiency symptoms: A metallic taste in your mouth could be a sign Express.co.uk