Normally no, apart from an achy muscle at the injection site, which normally does not last for more than an hour or so
These effects are more likely early in a protocol and often ease as the body adapts
If you are experiencing neuropathy symptoms in the feet or lower legs and are considering vitamin B12 therapy, you can find more detailed information about the treatment, assessment process and suitability here: Our clinic is committed to providing clear guidance, evidence informed care, and a supportive environment for those exploring options for nerve pain and foot discomfort
NAD+ Injections: Improve energy, cognitive function, and recovery from physical exertion
The people who found closer to 50% in their urine probably had a slight vitamin B12 deficiency, and some of the vitamin was stored for later use
Table of Contents: What are the main health benefits of Vitamin B12 injections