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Gallbladder issues: If you have a history of gallstones or cholecystitis (inflammation of the gall bladder), inform your doctor

To answer that question, well look at what is in a MIC B12 shot besides B12

As per the Centers for Medicare & Medicaid Services (CMS), B12 injections may be covered if you have been diagnosed with: Pernicious anemia Specific gastrointestinal disorders that affect nutrient absorption (such as Crohns disease) A history of gastrointestinal surgery that disrupts nutrient absorption To qualify for coverage, your healthcare provider must adhere to specific documentation requirements

Also, sleep disorders have been associated with weight gain and insulin resistance [7377]