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You might need a personalized schedule based on your bodys needs

a lower overall metabolic rate

This provides approximately 4mcg/kg for a 160lb individual, falling within the effective clinical range

Our B12 injections are easily administered in designated acupuncture points on either the leg or the arm

My TSH and T4 have never been that far out of range but with the proper testing I found Hashimotos, which explained my constant fatigue and irregular periods (they can be anywhere from 14 days to 50+ and last 2-3 days or up to 10, and be very heavy or very light, truly irregular in all manner of ways!) Oh and folate needs testing too