To sum up, some patients report the worsening of symptoms within the first few days or weeks when they begin B12 shots
The omission of batch-testing by numerous online vendors indicates that the issue of risk often relates to product quality rather than solely the inherent properties of the peptide
Although genetic engineering can endow bacterial strains with specific therapeutic functions, engineered live bacteria still face certain biosafety issues when entering the host or environmental system
The efficacy of oral supplementation of vitamin B12 is limited by factors such as the absence of IF, gastric surgery, concomitant metformin, or antacid treatment
Sublingual vitamin B12 compared to intramuscular injection in patients with type 2 diabetes treated with metformin: a randomised trial
(what science says) The short answer is yesvitamin B12 shots do work, but their effectiveness depends heavily on who is receiving them and why