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One of the strong supplements is vitamin B12, since cases of deficiency in this vitamin are quite widespread
Vitamin B12 is key for healthy red blood cells, nerve function, and DNA
Improvement in symptoms can be seen within days to weeks of starting B12 supplementation
Jonathan Hommel for guidance in the original study design, and Dr
What ingredients in B12 supplements might cause digestive upset
Some people also experience mild diarrhea
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