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What Happens After Your First B12 Injection Following your first B12 injection, several physiological processes begin immediately, though you may not feel different straight away
To address vitamin B12 deficiency, it is commonly administered through injections, oral supplements, or fortified foods
When B12 is in short supply, it can trigger a chain reaction that directly impacts your heart
Vitamin B12 is found mostly in animal products, like fish, meat, dairy and eggs
Potential drug interactions have not been systematically studied
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