You’ve heard the advice: eat fewer refined foods like white bread and white sugar. But what exactly are refined foods, and what makes them so taboo?

When you think of something that’s refined, you may think of something that is superior to its predecessor. And in terms of food, refined versions are said to be “made purer by an industrial refining process.”

And when food processing first began, it was only the wealthy who could afford such luxuries as “refined” white flour and white sugar, while the peasants had to make do with foods the way nature created them.

So what’s the problem?

Click here to find out what the problem is.