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B12: The Basics B12 is a water-soluble vitamin that plays a role in red blood cell formation, metabolism, immune health, DNA synthesis, and brain and nervous system functioning
Deficiency is common in those with fatigue, brain fog, or nutrient absorption issues, especially individuals with gastrointestinal conditions, vegans and vegetarians, or those taking medications like metformin or proton-pump inhibitors
Research-grade suppliers who perform HPLC verification on every batch and provide those results alongside shipment aren't charging extra for documentation
The time it takes to feel refreshed after receiving a B12 shot can vary depending on your individual health, lifestyle, and the severity of your deficiency
Precautions: The usual precautions for parenteral administration should be observed
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