direct to your inboxMore than 1,900 This Morning viewers complained to Ofcom over an interview aired last week.On Friday, February 26, hosts Alison Hammond and Dermot O’Leary welcomed doctor Michael Mosley onto the show who discussed a 800-calorie a day diet.He said he is favour of the method as part of a 'rapid weight loss' programme and claimed studies have shown that consuming 800 to 1,000 calories a day can be 'safe and effective'.