Researchers should determine suitability based on the requirements of their individual study protocols
Common Side Effects of B12 Injections Most people do well with Vitamin B12 shots, but some might feel a bit of pain or discomfort where the shot was given
These may include: Nausea and stomach upset Diarrhea Constipation Injection site redness or swelling Itching Headache Dizziness Blood clots Swelling In rare cases, some people may experience an allergic reaction to vitamin B12, which can cause symptoms such as hives, difficulty breathing, and swelling of the face, lips, tongue, or throat
When energy improves, it becomes easier to maintain the habits that drive results
My clothes are fitting better
No established optimal cycling protocol exists in humans