Most medical documents indicate you might experience any of these: Mild diarrhea and/or upset stomach Difficulty breathing or swallowing Weight loss or weight gain Nervousness or restlessness Nausea or vomiting Headaches or migraines Paresthesias (tingling sensations) Rhinitis (chronic sneezing or a congested, drippy nose) Skin reactions, such as rash, itching, swelling, blisters, or pain at the site of injection Light joint pain Lightheadedness or dizziness Chest pain or discomfort Low blood potassium levels Irregular heartbeat Chills, night sweats, fever, or hot flushes General feeling of sickness However, people often fail to recognize that many side effects of vitamin B12 injections are consistent with B12 deficiency itself
B12 may afford advantages: it has been studied for ameliorating nausea triggered by GLP-1 RAs
Am J Clin Nutr
Whether youre just starting your weight loss journey or feel stuck at a plateau, our personalized approach ensures you get the support and the boost you need to move forward with confidence
Rees, W
Likewise, mothers who are breastfeeding are advised against NAD+ therapy because its unknown if or how NAD+ might pass into breast milk and affect the baby