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For first-time patients, blood tests are usually recommended to establish baseline B12 levels

This vitamin helps regulate the sleep-wake cycle, making it easier to fall asleep and stay asleep

Others who might be prescribed B12 shots are those at the highest risk for a B12 deficiency, including: Vegans, since vitamin B12 is found only in animal products People ages 60 and up since their bodies don't absorb B12 as efficiently People with Crohn's disease or pancreatic disease, since they prevent nutrient absorption People who had weight-loss surgery, which decreases B12 absorption People with an eating disorder People with HIV People with diabetes Since a mild B12 deficiency might not cause symptoms, it can go undetected for years since levels are not checked during routine blood work

Because the injection is brief, any discomfort is usually mild and temporary

Choosing a clinic with nearby locations can make it easier to stay committed, attend appointments, and continue care long enough to achieve better results

Usually, B12 is absorbed in the stomach with the help of an intrinsic factor protein