King Charles urged to make major change to his diet during his cancer treatment

has been advised to make a significant change to his regular diet following his diagnosis earlier this year.

In February, Buckingham Palace confirmed the monarch had been diagnosed with an undisclosed form of cancer and had begun regular treatment.

In line with his , the King has reportedly been advised that he must start eating a regular lunch to keep his strength up.

The advice goes against the King’s own preference as the monarch has routinely avoided lunch, as earlier confirmed by Clarence House.

In celebration of the then Prince Charles’ 70th Birthday, Clarence House released a list of facts about the royal figure, number 20 stating: “The Prince does not eat lunch”.

A royal source claimed the monarch’s habit of skipping lunch often came as a consequence of his busy schedule of public appearances, royal commitments and private meetings.

A report from the MailOnline suggested Camilla, royal aides and the monarch’s doctors are all in support of the change and the King has now, begrudgingly, started eating at lunchtime.

However, as part of a compromise, King Charles has reportedly chosen to only eat half an avocado as a healthy and light lunch option.

Avocados, often now characterised as a superfood favoured by millennials, are full of essential vitamins and beneficial fats.

Additionally, NHS guidance outlines the importance of eating well during cancer treatment in order to boost immunity, manage some side effects and speed up recovery post treatment.

During a visit to the Army Aviation Centre in Hampshire earlier this year, King Charles told a veteran how he had lost some sense of taste as a side effect of his cancer treatment.

The monarch has remained private about his ongoing medical treatment, although it has been reported his doctors are to briefly “pause” his cancer treatment to enable the King to fly to Australia later this month as part of a royal engagement.