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[5] [10] In 2023, it was the 104th most commonly prescribed medication in the United States, with more than 6 million prescriptions
If you have a mild deficiency, you might feel a noticeable difference in energy levels within a few days to a week
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Certain populations face higher deficiency risk: vegetarians and vegans (B12 is primarily found in animal products), adults over 50 (decreased stomach acid reduces B12 absorption), individuals with digestive disorders like Crohn's disease or celiac disease, and those taking medications like metformin or proton pump inhibitors
For women, B complex injections can help support reproductive health, reduce PMS symptoms, and manage hormonal imbalances
