King Charles has been known to skip meals in the past to avoid taking a break from his busy official agenda.

But those days are over as Queen Camilla is calling the shots when it comes to his well-being as he undergoes cancer treatment, according to royal biographer Sally Bedell Smith.

Ms Bedell Smith turned to her Substack page, Royals Extra by Sally Bedell Smith, writing in a post, “Queen Camilla has been doing double duty, representing the King at engagements around Britain and tending to his comfort at home.

“Not unlike Queen Mary, she keeps a close watch on her husband and knows how to hold the line when necessary.

“After decades of skipping midday meals to squeeze more work into his busy days, I am told that King Charles III is now eating lunch.”

But, some things stay the same, since the king’s cancer diagnosis, Charles still goes for brisk walks when he can.

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Charles has pulled back on his public-facing duties but is still conducting his constitutional duties, including going through his Red Boxes and meeting with the Prime Minister.

A royal insider spoke to Daily Express US exclusively saying: “I think what they’re doing now, what they’re trying to do certainly, the Easter Break is a very, very valuable thing.

“Parliament rises, and it goes on its Easter holiday, what will happen, is that all of the interest that usually centres on the courts, on Parliament, on politics, and thereby, also on the Royal Family, that will be downplayed, quite vigorously, and that will give them a break.”