Dr. Sanjay Gupta, CNN correspondent, world traveler and practicing neurosurgeon, considers himself a healthy guy: He exercises and lives an active life, keeps his mind stimulated and eats well.

Turns out, the bacteria in your gut have food preferences of their own. Here’s how a colorful plate feeds the bacteria that ...

Want even more inspiration? Explore the rest of this year’s Ultimate Men’s Health Guy competition. READ MORE ...