can vitamin b12 injection cause nausea Why do I feel worse after a injection: causes explained Common & Rare Side Effects

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Usually, its 1000 mcg daily or weekly

Sublingual Forms: Benefits and Usage Sublingual vitamin B12 supplements are placed under the tongue

These include: Vegetarians and vegans, as vitamin B12 is mainly found in animal products Older adults, as they absorb vitamin B12 less well with age People with gastrointestinal disorders, like celiac disease or Crohns disease, which can block vitamin B12 absorption Those taking certain medications, such as proton pump inhibitors or metformin, which can also block vitamin B12 absorption Its best to talk to a healthcare professional about whether you need vitamin B12 supplements

If you don't know if you need it, why are you getting it