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X., & Li, J
In some cases, excessive intake of B12 may cause other side effects such as headaches, fatigue, dermatological issues, and nerve damage
A standard multivitamin may be all that is needed to correct a mild vitamin B12 deficiency
any claimed synergistic fat-loss effects are unsupported by peer-reviewed evidence
Vitamin B12 often occurs in a combination with deficiency of vitamin B6, or folate deficiency anemia
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