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All needles are manufactured to strict quality standards using computerized grinding and 100% visual camera inspection to ensure sharp, consistent, and high-quality needles in FDA-inspected ISO 13485 certified facilities which utilize good manufacturing practices per USFDA standards
There are some good over-the-counter products but the majority of products being marketed for this are not proven to be effective and theyre pretty expensive
A 1996 study out of Germany found that periods of intensive training or racing were associated with a three- to six-fold increase in GI blood loss
But here are some general guidelines: Severe deficiencies: Daily shots for 1 week, then weekly shots until levels normalize Moderate deficiencies: Weekly shots until the deficiency is corrected Maintenance dosing : Monthly shots to keep B12 levels optimal Its definitely possible to take B12 shots too often
If you experience side effects that concern you, discuss them with your GP or practice nurse
