Tkalcevi VI, Cuzi S, Brajsa K, Mildner B, Bokuli A, Situm K, et al
B12 is typically absorbed through the stomach, so if you havestomach issues or have taken many common medications you may not be able to absorb it as effectively
While systemic injection also delivers peptides to the brain via blood circulation, nasal delivery may provide more direct CNS access for some portion of the dose
Although the 100 mg of niacinamide in this injection is relatively modest compared to gram doses used to treat cholesterol, diabetic patients should still have their blood sugar observed, as even moderate niacinamide supplementation could necessitate small adjustments in diabetes medications
However, this comes with significant caveats