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Denials are expensive

As general lab practice, intact, unopened solid stored dry, light-protected, and cool is often assigned 24 months by chemical suppliers

Our trained team can discuss your individual situation, recommend testing if needed, and administer vitamin B12 injections safely

It should be noted that these studies measured total Cbl levels, but as previously mentioned, the biologically available form of Cbl, TCN2-Cbl, comprises only approximately 2030% of the total Cbl level, which may lead to a significant number of false negatives for clb deficiency

This is why I always recommend optimizing your medications as the first step after getting a correct diagnosis