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how long does b12 injections take to work It for Vitamin Work? Simple Guide How Long Does It Take
Description
The exact interval depends on individual comorbidity burden

Previous studies in hepatocytes also reported a significant reduction in the rate-limiting enzyme CPT1 and downstream genes involved in FAO as a result of low B12 [14]

Eur J Gen Pract 12

However, if you have a severe deficiency or a condition that prevents proper B12 absorption, injections may be the better choice
