Update: You can now order injectable B12 again. Get it here.

What Is Vitamin B12?

Vitamin B12 Injections

Learn everything about vitamin B12 injections. What are their benefits? Any side effects? Can you overdose? And how can you get them?

Vitamin B12 Foods

What foods are the richest sources of B12? Find out how to maximize your intake through consuming a variety of vitamin B12 foods.

Vitamin B12 Levels

What do we consider good vitamin B12 levels? Here’s a good range to aim for, and it is very different than what’s normally accepted.

Vitamin B12 Forms

What’s the best form of vitamin B12? Methyl vs Cyano vs Adenosyl vs Hydroxo B12. Learn everything about any type of B12.