Peanut butter, cinnamon, dark chocolate chip, salted caramel — the flavors go on and on. Protein bars are definitely tasty.

he ate a couple of protein bars a day and a protein shake as he left the gym because it was convenient. "These things are probably as ultra-processed as you could possibly get," he said.

And when it comes to rich sources of protein, people often rely on packaged protein bars or protein shakes. But, the question of concern is, which one is best between the two? Scroll down to read ...