Charlotte Norton, Medical Director at The Slimming Clinic, previously spoke to Express.co.uk about what foods Anne likely eats throughout the day, as well as what exercises she does.

“The fact that Princess Anne exemplifies good health shows that she must lead an active and healthy lifestyle,” she said.

“While the usual weight loss rules would have applied, such as burning more calories than she consumed, eating lean meat, reducing sugary foods with little to no nutritional value and avoiding fad diets, there are additional things that I believe Princess Anne would have done.”

Charlotte added that Anne also probably eats foods that contain high levels of nutrients and protein, saying: “We know that the Princess is also a fan of smoked herring – a great protein-rich dish.

Source: Daily Express | Diet