Everything to know about the keto diet that Halle Berry lives by

By Sam Brodsky
Metro

[post_ads]The ketogenic, or keto, diet doesn’t sound like the normal diet. It requires you to eat a lot of fats, which isn’t exactly what you’d expect out of something that’s supposed to help you lose weight. But 51-year-old (ageless) Halle Berry swears by it, and so do famous faces like Megan Fox, Vanessa Hudgens and crunchy-granola-but-glam Kourtney Kardashian. What is the keto diet, exactly? We break it down for you — because Berry and her sister celebs definitely are a testament to its positive effects.

What is the keto diet?

What is the keto diet trend? Prepare yourselves for this one. The keto diet is low in carbs, moderate in protein and high in fat.

Pamela Nisevich Bede, R.D., a dietitian with EAS Sports Nutrition, told Shape.com, "You're taking carbohydrates out of the equation, and the body kind of pauses and says, 'Okay, I don't have any sugar. What am I supposed to run off of?'" This is were fats come in, and protein intake, Bede said, is moderate because the body converts excess protein into carbs.

The website Keto Dash explained, "When you eat something that is high in carbs (that yummy donut), your body will produce glucose and insulin. ... The problem with this is that when glucose is used as a primary energy source, fats are not needed for energy and therefore are stored."