B12 injections may be the better choice if you: Have severe, diagnosed B12 deficiency with neurological symptoms Have pernicious anemia requiring medical supervision Have had gastric bypass surgery affecting all absorption Prefer less frequent dosing and don't mind needles Have a medical condition requiring injectable B12 specifically Who Should Choose Oral Spray
Studies as early as 1998 validate the use of correct oral treatment as being equally effective as injections, with a conclusion that stated: In cobalamin deficiency, 2,000mcg of cyanocobalamin administered orally on a daily basis was as effective and may be superior for raising blood B12 levels as 1,000mcg administered intramuscularly on a monthly basis
Marks are less fine (0.1 mL), so it's a bit less precise for small doses
Cognitive benefits are primarily documented in deficient individuals
What are the common signs and symptoms of B12 deficiency: Fatigue and weakness, as B12 is crucial for energy production
Moderate to heavy consumption can disrupt hormones and hinder sperm production