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It is important to note that whilst blood test results may normalise relatively quickly, symptom resolution often takes longer
Find the best time to take B12 supplements here
When your body does absorb B12, it takes time for the vitamin to be distributed throughout the body and more time for the body to use it in a way that is noticeable
These include: Lifestyle interventions (dietary advice, physical activity programmes) Licensed pharmacotherapy such as orlistat, or GLP-1 receptor agonists including semaglutide 2.4 mg (Wegovy, NICE TA875) or tirzepatide (Zepbound) where clinically indicated and available Referral to tier 3 or tier 4 weight management services , including bariatric surgery assessment where appropriate Information on NHS weight management services and eligibility for licensed treatments is available via the NHS website and NICE guidance
