Efron was on Hot Ones to promote his new show Killing Zac Efron.

BaywatchstarredDwayne Johnson,Alexandra Daddario, and Efron as an elite group of lifeguards.

“[Nine] days of absolutely zero carbs & sugar.

BAYWATCH

Credit: Paramount Pictures

Only organic grassfed/free range protein and organic leafy greens,“Efron tweeted.

(In case you forgot what the results looked like, there’s a little reminder above.)

In December,reports surfacedthat Efron had contracted a potentially life-threatening illness on the set ofKilling Zac Efron.

He admitted that he gets a better night’s sleep in the outdoors than he does back at home.

The formerHigh School Musicalstar also opened up about bonding with fellow starLeonardo DiCaprio.

Efron told Evans that DiCaprio later invited Efron to breakfast at his house the next day.

“He cooked me breakfast the next day at his house.

He cooked waffles and burnt those.

Then he made pancakes,” he said.

Thank you buddy.”