Do You Need More Vitamin B12?

You may know about the pluses of taking iron, calcium, and vitamin D supplements.
But what about Vitamin B12? Do you need more of it?
The vitamin has been in the news recently after celebrities like Justin Timberlake, and Madonna reportedly got B12 injections.
Allure reports that it's a "water-soluble micronutrient that's found naturally in many animal foods."
B12 helps produce red blood cells and impacts cell metabolism and DNA synthesis.