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Final Words Vitamin B12 injections are a safe, effective way to support your health, boost your energy, and enhance your lifestyle
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A minimum of 8 weeks appears necessary to observe meaningful changes in chronic conditions, with 10 to 12 week cycles common
It generates no new evidence about whether it works, and it will not produce the large controlled trials that would, because those require a company to file an investigational new drug application and fund years of development
Community protocols describe a 50 mg/day starting phase lasting 1-2 weeks, escalating to 100-150 mg/day based on tolerance
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