vitamin b12 nasal spray vs injection PDF) Novel Methylcobalamin versus Intramuscular Injection: A Randomized, Crossover Comparative Bioavailability Study Nascobal®Nasal spray(Cyanocobalamin, USP)500 mcg/spray2.3 mL
Description
Most-cited triggers: persistent GI symptoms, persistent fatigue, or the cycle simply ending
B12 isn't a magic bullet
Extreme fatigue after b12 injection fades as balance returns
This method bypasses the digestive system, making it an excellent option for those who have difficulty absorbing B12 from food or supplements
This was done in a double-blind, placebo-controlled fashion
