A deficiency in B12 can lead to a significant decrease in energy and exercise tolerance, along with fatigue
Congrats " r/medicine: "Could Semaglutide Be Exacerbating Underlying Eating Disorders?" 600 upvotes, 252 comments I saw a 26 year old female, high achieving, BMI of 25 and A1C of 5.4
These injections, usually containing hydroxocobalamin or cyanocobalamin, are administered intramuscularly, thus bypassing the digestive system where the absorption problem occurs
A peptide is a chain of amino acids held together by peptide bonds, and those bonds are precisely what digestive enzymes (pepsin, trypsin) are built to cut, with the acidic stomach environment finishing the job so an oral peptide is largely destroyed before it can be absorbed, which is why injection is the default
Dont let any doctor tell you otherwise