Loyal Theorists, did you know that there was a McDonald's Big Mac priced at $18! Yes, $18! And we thought the $5 meal deal was a high price... But why has the franchise, who has always been seen as inexpensive, suddenly raised prices? Is it inflation? Or is there something deeper happening with their McNuggets, fries, and burgers? Join Food Theory Host Santi as he fights inflation!

Have you ever wondered whether your food ACTUALLY expires? Okay, every food has some expiration date. Join Food Theory Host Santi as he finds out what the deal is!

Join Food Theory Host Santi here in sunny California to find out... can we actually cook an egg on the sidewalk? And not just eggs, but what about a whole breakfast with bacon and toast? Let's hit the sidewalk and find out!

Join Food Theory Host Santi as he uncovers the true secrets of the 007 cocktail.

Join Food Theory Host Santi as he dives into the insanity that is Dave Portnoy's "One Bite" series.

Today Santi and Mythical Chef Josh are competing in the ultimate SOUR CHALLENGE! Can they conquer the gauntlet of sour challenges or will this be their last meal?

What on earth is fruit punch? Everyone has had at least one fruit punch Gatorade, Kool-Aid, or Hawaiian Punch and has said it tastes... red?! Join Food Theory Host Santi as he gets to the bottom of exactly WHAT the heck is fruit punch's flavor!

You've been cutting your sandwiches WRONG for years. Forget the diagonal vs horizontal cut. No, try The Duff Cut, a sandwich slice that is supposed to give you the PERFECT bite every time. We know... it's rather controversial, but trust us, this is BIG.