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Treated mice displayed myofibers nearly twice as large in cross-sectional area and demonstrated higher contractile strength, with reports of up to 70% greater force compared to untreated groups

When Re-Testing May be Appropriate Borderline levels: 36 months High levels: 13 months During B12 therapy: Monthly until normalized With new symptoms: As needed Additional Testing Your Doctor May Consider Complete B12 panel Kidney function Absorption testing When Additional Care May be Warranted Persistent high MMA despite supplementation Progressive neurological symptoms Symptoms of severe B12 deficiency (extreme fatigue, difficulty walking) Signs of pernicious anemia (severe macrocytic anemia) Bibliography References 1