It’s one that has been found to be “more effective” for weight loss, but he warned people it does come with some rules.
Speaking during an appearance on Studio 10 in 2019, he discussed why rapid weight loss is better than other, slower techniques.
“The scientists have been telling me for some time now that you can be better off doing rapid weight loss diet and that is doing 800 calories a day,” he said.
He referenced two big UK studies that examined this with groups of more than 300 people.