Vitamin B12 supplements are commonly marketed for energy, metabolism, mood, and more
It is not available as a licensed medicine through the NHS, and it is not listed in the British National Formulary (BNF)
If you are naturally deficient you may need a B12 injection once every month may be ideal, for other clients one injection every 3-4 months may suffice
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 (Vidal-Alaball et al., 2006)
Supplements May Not Suit Everyone Oral supplements can be convenient, but they rely on several things: choosing the right product, taking the correct dose, using it consistently and absorbing it properly
For women and men over age 18, the adequate intake (AI) is set at 4.0 g/day