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However, it is legal to purchase and possess in the United States for laboratory research purposes

The usual response to treatment can vary and depends on the cause of the vitamin B12 deficiency

A more evidence-based way to evaluate whether something is helping is to track measurable outcomes with your clinician (for example, symptoms tied to confirmed deficiency, or objective metrics like body weight, waist measurements, and lab work when appropriate)

It also stimulates GIP receptors, which enhance how the body processes glucose and supports fat metabolism