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This "Game of Thrones" Star Reveals the Exact Diet That Helped Him Lose 120 Pounds

The star has made a major transformation as he transitions from strongman to boxer.

Hafþór Júlíus Björnsson, best known for playing Gregor "The Mountain" Clegane on Game of Thrones, has transformed himself numerous times for on-screen roles, but the star's latest metamorphosis is all about his health and wellbeing. The strongman-turned-actor is now pursuing a career in boxing, and he's shed a whopping 120 pounds to get into fighting shape. Read on to discover exactly how the star slimmed down. And for more on how your favorite stars lose weight, Walking This Far Every Morning Helped a Famous Athlete Drop 90 Pounds.

He starts his day with a protein-heavy meal.

scrambled eggs and oatmeal on red tray
Shutterstock / Dvoeglazov

In a new interview with Insider, Björnsson revealed that he sticks to the same five daily meals to lose weight.

To kick off his day, Björnsson eats two scrambled eggs, 7 ounces of chicken, about 1.5 ounces of oatmeal, 1.8 ounces of blueberries, and a serving or Thor's Skyr, an Icelandic yogurt for which the star serves as an ambassador. For more insight into how your favorite celebs stay in shape, This Is the Exact Diet and Workout That Keeps Jamie Foxx Fit at 53.

He loads up on meat and vegetables for his second meal.

beef with rice and spinach in a white bowl
Shutterstock / MariaKovaleva

Meal number two includes approximately 8 ounces of beef tenderloin, 5 ounces of rice, and low-carbohydrate vegetables like green beans, spinach, or zucchini.

Meal three means more chicken.

chicken and sweet potatoes in ceramic dish
Shutterstock / CCat82

For his third meal of the day, Björnsson eats approximately 8 ounces of chicken. He pairs his protein of choice with about 7 ounces of either boiled white or sweet potato and about a half-cup of greens.

Meal four incorporates both healthy protein and carbs.

salmon with white rice and spinach
Shutterstock / Silvia Bogdanski

When it's time for meal number four, Björnsson eats approximately 8 ounces of salmon. At this meal, he also eats about a half-cup of white rice and a half-cup of spinach.

For more on how stars get cut, check out Mark Wahlberg Reveals His Exact Workout for Six-Pack Abs.

His final meal is a high-protein treat.

yogurt in small glass pot topped with blueberries
Shutterstock / Nataliya Arzamasova

While Björnsson's weight loss plan may not allow for a ton of sugary treats, he makes his own version of dessert at the end of the day.

To do so without derailing his weight loss efforts, Björnsson combines a portion of Thor's Skyr with approximately one ounce of peanut butter and a scoop of whey protein. Though Björnsson has been relatively strict about his diet to lose weight, he admitted that he also allows for a true cheat meal from time to time.

"My personal preference is to eat healthy six times a week, and then have one day off…If you want a pizza, have a pizza," he told Insider.

For more on how your favorite stars get in shape, check out Brie Larson Reveals Her Intense Workout for Six-Pack Abs, and for the latest celebrity health and fitness news delivered to your inbox, sign up for our newsletter!

Sarah Crow
Sarah Crow is a senior editor at Eat This, Not That!, where she focuses on celebrity news and health coverage. Read more