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vitamin b12 oral vs injection vs. Intramuscular in Vitamin B12 Deficiency β’ The Blood Project π Vitamin B12 Deficiency? Hereβs
Description
Many patients notice improved energy levels and reduced fatigue within 12 weeks of starting intramuscular B12 injections
PMCID: PMC8332470

Neurological recovery may take months and can be incomplete if deficiency is prolonged

Preclinical studies showed weight loss occurred even under ad libitum feeding conditions, meaning food intake wasnt restricted

In preclinical data, the pair improves adipocyte NAD+ by inhibiting NNMT, resulting in better fat metabolism and reduced obesity.[8][3] For anti-aging, this translates to improved tissue resilience and reduced senescence