Which form of b12 is best , How to consume B12 , B12 tablet , nosal spray, sublingual, liposomal, Injection?, Right way to Consume b12, This content is for informational and educational purposes only Sublingual B12 Is it More Effective to Take it Under Your Tongue? WhyNotNatural Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta analysis Irish Journal of Medical Science (1971 ) Vitamin B Supplementation: Oral Capsules vs. Sublingual Tablets AZ Dietitians