Semaglutide and tirzepatide are GLP-1 receptor agonists (tirzepatide also targeting GIP), mimicking gut hormones that regulate satiety and blood sugar a well-established pathway with extensive human data
Effects Promotes lipolysis
Unlike oral supplements, which must pass through the digestive system and may be poorly absorbed, B12 injections bypass the gut entirely
Additionally it was noted that in the rats treated with AOD9604, there were increased rates of lipolytic activity, as well as no negative effect on insulin sensitivity which has been seen in animals treated with human growth hormone ( A similar study conducted by Heffernan et
In many cases, B12 shots are available by prescription only
The compound then received GRAS (Generally Recognized as Safe) designation from the FDA for use as a food ingredient, which is a separate regulatory category from drug approval