Are you exhausted, forgetful and lacking energy? You may suffering from a vitamin B12 deficiency. Find out what causes this deficiency and what you can do about it.

Click here for Part 1 of America's B12 Deficiency.

Click here for Part 2 of America's B12 Deficiency.

Click here to read more about Vitamin B12.

We all love a good cup of coffee to wake us up in the morning. But that routine drink may be doing good things for your health. Turns out, drinking coffee could help you do three big things: burn fat, lower your risk of type 2 diabetes, and boost your mood. Watch the video below to see how, plus three ways to spice up your coffee with adding calories!