What is the protocol for calcium folinate (leucovorin) injections in individuals with Methylenetetrahydrofolate Reductase (MTHFR) mutations? For nasal vaccines we got the first results from a large, randomized trial yesterday which were encouraging for inducing better immunity and less side effects vs shots https: t.co ufxF2r04wQ Vitamin B12 injections for MTHFR: Injection or sublingual B12? Methyl Life Supplements Can Vitamin B12 Help Clear the Brain Fog and Fatigue of Long COVID and ME CFS? RTHM B12 and MTHFR: Understanding the Connection and Its Impact on Health IV Wellness Vitamin B12 Deficiency and Reduced Methylation