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In Vitamin C Functions and Biochemistry in Animals and Plants

[DOI] [PMC free article] [PubMed] [Google Scholar] 77.Firdaus F., Zafeer M.F., Waseem M., Ullah R., Ahmad M., Afzal M

A lack of vitamin B12 can lead to health problems and severe symptoms if its not properly managed

Persistent fatigue, difficulty concentrating, or unexplained tingling should never be dismissed as "normal everyday stress." They are serious indicators that deserve closer examination
