Immune system reinforcement
High doses, often used to treat deficiencies, may lead to: Headaches, nausea, vomiting, and diarrhea Fatigue or muscle weakness Skin reactions such as rashes or itching Tingling or numbness in extremities Dizziness and, in severe cases, pulmonary edema and congestive heart failure Rare conditions like polycythemia vera, a slow-growing blood cancer In extremely rare cases, vitamin B12 can cause serious allergic reactions (anaphylaxis), characterized by facial swelling, difficulty breathing, and swallowing issues
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Still, some populations should be cautious with vitamin B12 supplementation Taking a daily multivitamin is generally considered a safe route to ensuring adequate vitamin B12 intake for most individuals
Its potential to speed up wound healing
"Neova DNA Repair Factor Nourishing Lotion Stimulates Collagen and Speeds Natural Repair Process." skin 1 (2009): 2