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If you didnt already know, serotonin levels have a role in regulating both deep sleep and alertness
For instance, a study by Grace et al., on lambs receiving a single 2 mg subcutaneous B12 injection demonstrated significant increases in serum and liver B12 concentrations for up to 24 days compared to untreated animals (2)
While still considered an experimental research compound , its growing use in fitness and wellness circles stems from its unique mechanism of action , which well break down in the next section
If youve been suffering from depression, confusion, fatigue, diarrhea or constipation, scaly skin, or abdominal cramps, you may have a vitamin B12 deficiency
This hepatocellular necrosis can temporarily raise serum B12 levels, particularly in acute hepatitis, alcoholic hepatitis, or decompensated cirrhosis
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