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The type, dosage, and frequency should be tailored to individual needs based on age, health status, and specific vitamin deficiencies
Check their qualifications, license, experience, previous customer experience, and cost before making a decision
Vegetarians and vegans may need to take vitamin B12 supplements to ensure they are getting enough of the nutrient
Your doctor might also check your B12 levels with blood tests
Seek immediate medical help if you develop symptoms of a severe allergic reaction, such as breathing difficulties, confusion, anxiety, clammy skin, and fainting.
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