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Working with commercial organisations : to explore other forms of delivery which do not involve the use of a needle, but which still by-pass the digestive route (where the foundation of the problem lies) and resolve symptoms
If you have risk factors for developing vitamin B12 deficiency or are experiencing symptoms, be sure to contact a healthcare provider to get a blood test to check your levels
Citations verified against NCBI PubMed records
Quality variability: Unregulated products vary significantly in quality
Community sources note that this creates a procurement barrier for research-context use, which is one reason the peptide-vendor channel and compounding pharmacy alternatives exist
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