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Each works on a different lever, which is exactly why a provider may use one, another, or a combination depending on your goals
In people without vitamin B12 deficiency, evidence does not consistently show cognitive benefit from supplementation alone
The substance was cobalamin, which the discoverers called "vitamin B 12 "
### Continue to monitor your health As you proceed with treatment, your provider will likely ask you to keep track of your symptoms and whether they recede
An IM protocol with 25% bioavailability variability wastes the precision that small-batch synthesis provides
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