Margot Robbie took everyone's breath away with her gritty, eccentric role as Harle Quinn in Suicide Squad. She did it yet again with her rendition of Queen Elizabeth I in her latest historical drama Mary Queen of Scots. She's not only talented, but she looks gorgeous as well. Recently, her personal trainer, David Higgins, revealed the secret to her svelte figure. And surprise surprise, he claims that breakfast is overrated.

Higgins believes intermittent fasting--where you only eat for an eight-hour window every day--is the secret to losing weight, reports dailymail.co.uk. "Sometimes you don't need to have breakfast," the fitness expert, whose other clients include Naomi Campbell and Claudia Schiffer, told Insider.