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There are also a number of health conditions that prevent patients from being able to absorb a sufficient amount of vitamin B12 both through their diet and through vitamin supplements, making injections the only method that ensures they are not deficient
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The Large Folate Cycle The large folate cycle consists of three substances: Tetrahydrofolate (THF) 5, 10-Methylenetetrahydrafolate Methylfolate (5-MTHF) The folate cycle is responsible for converting tetrahydrofolate (THF) into initially 5, 10-methylenetetrahydrafolate and finally methylfolate (5-MTHF)
The expansion of water as it turns to ice can potentially stress the glass vial, leading to microfractures and compromising the seal