[21] When treated with cyanocobalamin, patients with Leber's disease may develop serious optic atrophy, possibly leading to blindness, based on few case reports
Recognizing B12 Deficiency Symptoms Signs of Vitamin B12 shortage include fatigue, weakness, pale skin, and shortness of breath
However, adherence to Medicare guidelines for B12 injections is key to securing coverage
How we reviewed this article: Current Version October 03, 2025 Written By John DiBella Fact-checked By Dr
Oral supplements need to pass through the digestive system before they can get into your bloodstream, but a B12 injection goes straight to your bloodstream
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