vitamin b12 injections cause black stool What Causes Black-Colored Stool? stool, or melena, can result from: Dietary Factors: Foods like black licorice, blueberries, or iron supplements. GI Bleeding: Upper gastrointestinal bleeding (e.g., ulcers, gastritis, or esophageal varices) Vitamin B12 Side Effects

Common B12 deficiency symptoms include: Persistent fatigue and weakness Tingling or numbness in hands and feet Memory problems and difficulty concentrating Mood changes like irritability or depression Dizziness and balance issues Pale skin or yellowing of eyes Sore, red tongue Who is Most at Risk for B12 Deficiency

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Substituting one form for another should only happen with professional guidance

Phase 1 and Phase 2 trials showed excellent tolerability with no serious adverse events attributed to the peptide

Side effects such as nausea, constipation, acid reflux, stomach pain, vomiting, diarrhea, and injection site reactions are common

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