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Tap water and boiled water are not sterile and contain pyrogens that can cause serious adverse reactions if injected
Signs and Symptoms of Vitamin B12 Deficiency Early symptoms: Weakness and fatigue Pale skin Headaches Mild mood changes Intermediate symptoms: Tingling or numbness in hands and feet Breathlessness Heart palpitations Mouth ulcers or a red, swollen tongue (early to intermediate signs) Advanced symptoms: Memory problems Depression, anxiety, mood swings Poor balance or coordination Weight loss, poor appetite Constipation or loose motions Visual disturbances In some cases, long-term deficiency can cause permanent nerve damage , so early detection is key
In fact, it can be caused by a number of different factors, including medication side effects, viral infections, and certain autoimmune diseases
Both NAD and B12 injections are administered as shots, so there may be a mild level of discomfort
27 May 2026 8 min B12 injections: who actually needs them and how often