To absorb B12 from food or from a pill, your body needs three things working together: Stomach acid , which releases B12 from the protein it is bound to Intrinsic factor , a protein your stomach lining makes that escorts B12 through your gut A healthy small intestine , specifically the last section, where B12 is finally taken in Should even one of these three steps break down, absorbing B12 from a tablet becomes difficult
pills are ideal for maintaining levels in healthy individuals
Nausea (most common, typically dose-dependent and transient) Diarrhea or constipation during dose escalation Vomiting, especially when starting or increasing dose Reduced appetite and early satiety Injection site reactions (redness, bruising) Fatigue, particularly in early weeks Rare: Pancreatitis discontinue immediately with severe abdominal pain Rare: Thyroid C-cell effects (contraindicated with MEN2 or thyroid cancer history) AOD-9604 is a modified C-terminal fragment (residues 176191, Tyr-hGH177-191) of human growth hormone, studied for lipolytic and anti-obesity properties
All types of solutions also have their role to play
They're a good option for daily use but may not provide the immediate relief that IV infusion offers
Cartilage and joint research context A separate animal line of work has investigated AOD-9604 in joint research