side effects of taking vitamin b12 injection High Levels: Causes, Symptoms & What to Do Vitamin B12 Injection - Benefits,

2 People assigned female at birth generally have a higher percentage of body fat, lower levels of water in the body, and less of the enzyme that breaks down alcohol, compared to people assigned male at birth

Common side effects Injection-site reactions: mild redness, tenderness, swelling, occasional bruising - usually resolve within hours Skin flushing / warmth - brief, related to vasodilation Transient fatigue in the first 12 weeks of intensive protocols Mild headache - usually dose-related Higher-dose theoretical concerns Copper accumulation - each 2 mg injection adds roughly 0.03 mg of elemental copper, trivial next to the 0.92.2 mg from a normal diet

If clear, slowly push the plunger to inject the vitamin B12

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Body weight might affect the dose in some cases, but its not as common for B12 injections

Here is a breakdown: Most people are able to get enough vitamin B12 from their diets, Allen says, so widespread supplementation isn't necessary