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LC-MS/MS measurements confirmed both cofactors rose
A 2017 review of studies found that while all forms of B12 help improve B12 status, cyanocobalamin isnt as bioavailable as other forms of B12
Using them can mean failed drug tests, suspensions, and lost titles
The FDA also cited the company for using unvalidated laboratory testing methods that failed to detect impurities and for inadequate equipment cleaning and cleaning validation practices that increased the risk of cross-contamination between products
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