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For weight management, specific criteria apply as outlined in relevant NICE technology appraisals (such as TA875 for semaglutide 2.4mg), generally requiring a BMI 35 kg/m (or 30 kg/m with weight-related comorbidities), with lower thresholds (typically 2.5 kg/m lower) for people from certain ethnic groups, and treatment within specialist weight management services
Sublingual B12, which bypasses the gastrointestinal tract, is the least invasive and potentially most cost-effective option, especially for individuals with impaired absorption, making it an attractive alternative for long-term and patient-friendly management (Houle et al., 2014
In this case, the body cannot absorb B12 from food because it lacks a necessary protein