For detailed information, consider reading reliable sources such as Health Overview on Wikipedia to understand more about vitamin B12 and its benefits
No negative effects on carbohydrate metabolism
Vegans, vegetarians, people over the age 50, anyone with stomach/bowel issues like chronic gastritis, leaky gut, IBS or celiac, and anyone who regularly takes medications such as Metformin, PPIs (used for GERD), H2 Receptor Antagonists (used for peptic ulcers), or anything that interferes with stomach acid production are actually at risk for vitamin B12 deficiency, and should supplement B12 regularly
Vitamin B12 Injections Vitamin B12, or Methylcobalamin, is one of the most important substances that our body needs