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Pollutants like radiofrequency electromagnetic radiation and air pollution may contribute to male infertility by causing sperm DNA damage

Most B12 injections are 1000 mcg/mL, but there are other options too

Regular B12 injections can reduce feelings of stress or anxiety, increase mental clarity, and improve overall mood

Complete pharmacokinetic profiles (absorption, distribution, metabolism, excretion) have not been fully characterized in humans

Issues such as small sample sizes, lack of control groups, and short follow-up periods further weaken the validity of these studies

Of course, take manufacturer or prescriber guidance for route