NBCUniversal June 12, 2019 5:49 pm What is the Keto Diet? The Keto Diet has gained popularity for weight loss, but what is the Keto Diet and how can it affect you? US & World Videos 9:45 Orlando Bloom says he's shocked he's still alive after filming his new adventure show 2:13 Ryan Gosling talks Emily Blunt's ‘next level' fight scene in ‘The Fall Guy' 1:33 ‘Mary & George' actor Nicholas Galitzine broke his ankle wearing high heels during filming 1:20 This ‘Dungeons and Dragons' actor was surprised to find out RuPaul wanted him to portray him in a movie 1:49 Jay Leno and wife Mavis step out on a date night following her dementia diagnosis