Oral supplements work for some, but if you have absorption issues, injections are much more effective
Safe B12 Supplementation in the UK Vitamin B12 supplementation is widely available in the UK and, when used appropriately, represents a safe intervention for preventing or treating deficiency
Contraindicated in patients with a history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia Syndromes (MEN 2) Not suitable for individuals with type 1 diabetes or diabetic ketoacidosis Should not be used alongside other GLP-1 receptor medications Gastric emptying may be delayed, requiring caution for procedures involving sedation or general anesthesia due to aspiration risk Use caution in those with a history of diabetic retinopathy 1-3 Consult your healthcare provider if you have a history of pancreatitis, as the medication may increase risk Serious side effects may involve hypoglycemia, kidney issues, or allergic reactions Avoid use during pregnancy and breastfeeding 1 Enhances glucose-dependent insulin secretion Suppresses glucagon secretion Slows gastric emptying Influences brain regions involved in appetite regulation, leading to reduced hunger and caloric intake Improves insulin sensitivity 1-3 Supports weight loss Helps to minimize internal inflammation and improves cardiometabolic health measures 5 Q: How long does it take to see results
In addition to limited absorption via the IF, the intake of high-dose supplements leads to passive diffusion, i.e., the vitamin can freely enter the bloodstream without IF binding and receptor uptake
