Gastric banding carries a lower B12 deficiency risk than malabsorptive procedures, as the absorptive anatomy remains largely intact after LAGB
The ability of dihydroferulic acid to significantly stimulate GLP-1 secretion suggests that YMs metabolic benefits are mediated by microbiomehost interactions, adding another layer to its mechanism of action. Nutrients 2025, 17, 625

Contact your GP if: You have been found to have elevated B12 levels and have not received an explanation or follow-up plan You are taking high-dose B12 supplements without medical supervision You develop new symptoms whilst taking B12 supplements, particularly skin changes, persistent headaches, or gastrointestinal symptoms You have risk factors for liver disease (alcohol excess, viral hepatitis, obesity) and have elevated B12 You experience unexplained weight loss, night sweats, or persistent fatigue alongside elevated B12 Seek urgent medical attention if you experience: Jaundice (yellowing of skin or eyes) Severe abdominal pain or swelling Unexplained bruising or bleeding Confusion or altered consciousness Severe, persistent vomiting These symptoms may indicate serious underlying conditions such as acute liver failure, haematological emergencies, or other critical illness requiring immediate assessment

That bioavailability hurdle is why different delivery systems (liposomal, sustained-release, S-acetyl, sublingual) exist, and why choosing the right form matters as much as choosing the right brand
It comprises a complex network of different organs, cells, proteins, tissues and chemical substances that have the function of maintaining the body's own structure by defending against foreign substances and pathogens such as bacteria, viruses, parasites or fungi