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Fatigue, however, is a deeper, more pervasive sense of exhaustion that doesnt improve with sleep

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Common symptoms and signs of a vitamin B12 deficiency include digestive problems, anaemia, a sore tongue, loss of appetite, muscle weakness, poor memory and an increased risk of nervous system damage

Choosing the Right Treatment for You Deciding between NAD and B12 injections depends on your specific needs

Your response, your side effects, and your specific goals determine your optimal maintenance dose