can b12 injections bring on periods Do You Need a Prescription for Injections? The Truth About B12 Injections:

Its commonly found in animal products like meat, eggs, and dairy, which means individuals following plant-based diets or with certain medical conditions may have a higher risk of deficiency

Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity

The liver can store the vitamin for a long time, so it may take a few years for deficiency and symptoms to develop

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When in doubt, consult qualified healthcare providers familiar with peptide research

While not common everywhere, its an option for patients who dont do well with shots or have trouble absorbing vitamin B12