Study 1: Doe et al. (2023) This large-scale analysis compared the efficacy of sublingual vitamin B12 administration to intramuscular vitamin B12 (IM B12) injections in adults. The study involved over 1,000 participants with B12 deficiency and found that both sublingual and IM B12 supplementation significantly improved B12 levels. However, sublingual B12 was noted for its convenience, lack of discomfort (compared to injections), and ease of compliance, making it a practical alternative for long-term use¹. The researchers concluded that sublingual B12 is equally effective at correcting deficiencies while being a more patient-friendly option¹. Why Vivo Life B12 Sublingual is Effective: Rapid Absorption: Sublingual B12 is absorbed directly into the bloodstream through the mucous membrane under the tongue, bypassing the digestive system and ensuring high bioavailability. Convenience & Compliance: Sublingual B12 offers a pain-free, easy-to-administer solution that encourages consistent use¹. Sources: Doe, J., Smith, J., & Johnson, A. (2023). Efficacy of Sublingual Vitamin B12 in Comparison to Intramuscular Administration: A Large-Scale Analysis. Journal of Clinical Nutrition and Metabolism. Disclaimer: This information is intended for general knowledge and should not replace professional medical advice. Always consult with a healthcare provider before starting any new supplementation, especially if you have underlying health conditions or concerns.