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Retatrutide is an investigational medicinal product (IMP) accessible only through authorised clinical trials
The recommended daily allowance for vitamin B12 is 2.4 mcg for adults
Typical loading phase protocols: Daily injections for the first week Weekly injections for the next 4-6 weeks This intense schedule quickly boosts B12 levels
These adaptations may explain why metabolic benefits can continue to improve over weeks to months of consistent use, rather than plateauing immediately
Unlike oral B12, which depends on intrinsic factor and healthy gut absorption, the injection delivers B12 directly into the bloodstream
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