why do you need vitamin b12 injections Benefits of Taking 1. Improves Metabolism and Supports Weight Loss Many people suffer from a slow metabolism, causing weight gain and fatigue. With a B12 injection, can boost The Advantages of B12 Injections

With their ability to boost metabolism, increase energy, and aid fat metabolism, these injections can be a valuable addition to your strategy

However, B12 shots offer faster absorption and a quicker onset of action

Here's the TL;DR on vitamin timing: while there is no official medical advice dictating that you should take vitamin supplements at a specific time of day to improve their efficiency, there is quite a lot of research showing that avoiding some vitamin supplements at particular times (or more accurately, with particular meals) can improve absorption, or that taking some vitamins alongside food can reduce the risk of adverse side effects

If low B12 damages this sheath, nerve signals can misfire, leading to symptoms like tingling, numbness, or that awful pins and needles feeling

Vitamin B12 deficiency can cause physical, neurological and psychological symptoms

PMC 5788147