Maybe you're a few months into a GLP-1 protocol and your energy doesn't match your progress on the scale
In other words, the preclinical signal appears against a backdrop of controlled energy intake and activity, not as a standalone effect that overrides diet
If you are not deficient and are taking it as a supportive measure, you might not feel any dramatic change, and thats okay
How does B12 affect the heart rate
Importantly, if you have unexpectedly high B12 levels without taking supplements or receiving injections, this warrants GP review as it may indicate underlying liver disease, kidney disease, or certain blood disorders
Timeline of effects: what youll notice If you are wondering what do B12 shots do in terms of a timeline, the results arent always instant, but they are often more noticeable than oral vitamins