The King's diet has made numerous headlines over the years, like the time Charles addressed the myth that he has seven boiled eggs served to him to only eat the one that looks most fitting (spoiler: he doesn't).
So in light of the Coronation, I decided to spend one day of the week eating like His Majesty for breakfast, lunch and dinner.
Keen to tuck into some tasty food worthy of a monarch, I started my research to understand as accurately as possible what King Charles scoffs in 24 hours. The phrase 'eat like a king' had to ring true, surely?
Immediately, it became apparent that I was going to have to sacrifice three of my favourite things: chocolate, coffee and garlic; all of which the King reportedly avoids.
My meals were beginning to look less and less promising, and that was before I discovered his love of nuts, seeds and of course... eggs.
While the King doesn't eat as many as seven in one day, chef Graham Tinsley once revealed that the King eats a boiled egg with every single meal.
Slow-cooked lamb and roast potatoes? Add a boiled egg on the side. Mushroom risotto? Add a boiled egg on the side.
As well as adding half a dozen eggs to my shopping list, I wrote down leafy greens, organic honey and muesli. A trip to my local Lidl and Sainsbury's was going to be thrilling.
Though I took it as an opportunity to try the expensive Clarence Court eggs that I'd never usually blink an eye at, and I picked up the most deluxe muesli I could find.
While the King likes to eat all his fruit and vegetables locally picked and organic, I struggled to find Britain on any packaging - so strawberries from Spain it was.
Heading home with a light shopping bag, but a rather empty purse, I tried to get myself excited for the meals ahead - though in all honesty, it was hard.
Breakfast
First up was breakfast, and it will come as no surprise that the King starts his day with eggs.
Charles and his wife Camilla keep their own chickens in Gloucestershire, but mine came out of a cardboard box.
I was unsure how many to boil, so knowing my egg-packed day ahead, I decided to safely go with two.
According to chef Graham, His Majesty likes a coddled egg that is cooked for just two to three minutes to make it "very, very soft".
He then prefers his eggs peeled and hidden beneath salad leaves, mushed up a bit 'like mayonnaise'.
But quite frankly, I didn't want to make myself sick so early in the day, so I chose to eat the leaves and runny eggs separately.
The King's appetite for nuts and seeds is widely known and he's even jokingly been called a "bird" by Prince William.
So, I poured Lidl's finest cashews and almonds into a dish and made a bowl of seeded muesli on the side.
Not forgetting his love of fruit, I tucked into some strawberries too.
After eating a pretty big portion, I felt satisfied and hoped it would fuel me up for the day.
Lunch
Following a pretty substantial first meal, I was intrigued to see what lunch was going to be. But according to Clarence House, there was none.
Amongst a list of 70 facts released for the King's 70th birthday, one read: "The Prince does not eat lunch"... great.
Former royal correspondent, Gordon Rayner, also stated Charles believes lunch is a "luxury" that interferes with his busy work schedule.
So, I sat down to a delightfully large plate of... absolutely nothing.
Not knowing if/what the King snacks on, I made the executive decision to have another boiled egg - he does eat one with every meal, after all.
Drink
Attempting to try and fill my empty stomach, I opted for a cuppa - though this one was far from the British classic.
The King prefers to drink loose leaf green tea with organic honey, and requires his water to be heated specifically to 70C.
I'd be lying if I didn't admit that I ignored that part... my kettle doesn't specify the temperature and I don't own a thermometer.
Plus, who honestly has the time to check the exact temperature of their hot water?
Charles also likes "the ratio being one teaspoon of leaves per each cup of tea, plus one for the pot" - but that was easy enough.
I can't say I was disappointed by the final result, as it was pretty sweet and warming, but it certainly wasn't my usual strong coffee.
And by 3pm, I was really craving some caffeine and chocolate - if anything, taking it off the cards tempted me more.
Dinner
By the time dinner came, I was borderline hangry (hungry and angry), though thankfully I wasn't dreading this meal too much.
Charles doesn't eat meat or fish on two days of the week, plus no dairy products on one day.
But for the rest of the week, he is flexible and enjoys a variety of dinners, such as mushroom risotto, roast lamb and margarita pizza.
Television chef Ainsley Harriott once told HELLO! that Charles "really loves" Asian food and Prince Harry reportedly said that his dad "loves a good curry".
So, I decided to combine the two and cook a Thai green curry with brown rice, prawns, broccoli and Bok choy.
I was far less excited about the mandatory boiled egg on the side.... my fourth coddled egg of the day.
It was difficult to stomach and I couldn't even reward myself with dessert - because, like lunch, there was none.
After eating like the King for 24 hours, I can safely say that I don't want another boiled egg for a long while. Just the mere thought of runny whites makes me want to vom.
The rest of the food was pretty bland and boring, but I'm sure if I had a professional royal chef in the kitchen, it would have tasted a damn sight nicer.
And I would've had much less washing up.