Kylie Jenner's eating habits are something we're all very invested in, I'm sure, and luckily for us, they're something we can find out with a few swipes of a screen or clicks of a button. She made headlines last year when she tried cereal for the first time (she was a big fan), and there's always something new to pore over.

The 21-year-old's Instagram feed is always a good source of information regarding her latest hairstyle or the status of baby Stormi, but take a look at her latest story and you'll be able to see what Kylie Jenner eats on a regular basis when she wakes up in the morning.

Kylie kicked things off with the liquids, getting the juices flowing by blending together a healthy morning juice consisting of carrots, apple, ginger and celery. Once that glass of glorious green has made its way down her throat, it's time for the solids. First up are eggs.

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We've all scrambled a few eggs in our time, folks. Crack some shells, beat some yolks, remove some shell from beaten yolks, pour into pan - yum. Alongside that, Kylie likes to fry some bacon, slice up an avocado, and serve up the entire thing with some toast. Balanced, nutritious and delicious - what's not to like?

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Looks delicious, doesn't it? But the life of a Kardashian is more than just selfies and stories, and between modelling shoots, public appearances or just being an amazing mom to baby Stormi, Kylie's simply not got the time to cook a nutritious breakfast, nor spend a decent time cooking at any point in the day.

So, what does she do then?

It's impossible to know completely, but Postmates might have a really good answer for us. The delivery app recently shared all of Kylie Jenner's food delivery habits from the past year or so, and there are some interesting bits of information that give us an insight into the 21-year-old socialite's eating habits.

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Over the preceding 365 days, Kylie ordered food around once every two days at a total of 186 days, spending around $10,000 in the process. Postmates blog The Receipt went into more detail, and although once she ordered five times in a single day, she also used Postmates to order a bottle of water and a single carrot.

"Her most expensive order consisted of Don Julio Añejo 1942 Tequila while her smallest order was a bottle of Smartwater and a single carrot. Yes, you can Postmate a single carrot regardless of if it’s the only ingredient you’re missing — or you have a carrot craving." 

But regardless of what she orders, Kylie Jenner isn't completely dependent on the delivery life to keep her well nourished. If she's got a bit of free time or if she's hard on cash (let's be honest - it's probably always going to be the former), she knows he can rely on her cooking skills to have a nice, delicious breakfast.

JLo has a sick body. And in other news, the sky is blue. But it’s still easy to feel blown away when the singer posts a photo flaunting just how jacked she really is. You could spend hours on Jennifer Lopez's Instagram. Her abs (and legs, and butt, and arms…) have the power to suck you in and make you wonder: how the hell can this woman keep looking better, year after year? The answer: a whole lot of hard work and a pretty strict diet.

The latest evidence: A new Instagram she shared to celebrate her 49th birthday. “Current birthday situation…yup,” she captioned a shot of herself, her boyfriend Alex Rodriguez, and a few other pals clutching bottles of bubbly on the beach.

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Jennifer Lopez turned 49-freaking-years old, and she’s got a serious washboard situation going on. J.Lo is well-aware that her stomach looks good, too, because she shared a photo on Instagram right before that of herself at the gym in skintight pants and an abs-baring sports bra. At this point you're probably just waiting to read what she eats, I will tell you but let's just look at one more pic.

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Delicious. Anyways here's the nitty gritty. For one, her meals never include processed food. On top of that, almost everything Lopez eats is organic. A typical lunch might include salmon and a salad that's packed with veggies. Broccoli, peppers, and zucchini drizzled with vinaigrette is a fave, as is kale with crumbled queso and toasted pumpkin seeds.

Come dinnertime, she'll switch up the protein - "I like pork and chicken, especially Puerto Rican style!" she told UsWeekly - and enjoy it with quinoa or baked yams. Nothing boring about that right. I could eat this at least four times a week. Plus you may not be buying these from the exact same store as J.Lo but these items are readily available.

When she's not eating, Lopez's got a regular show at Planet Hollywood in Vegas, she stars in NBC's police drama Shades of Blue, and she's a judge on the new dance competition show World of Dance. All this to say, girlfriend is always on the go. It can be really easy to reach for a bag of Cheez-Its, but Lopez knows better. "I always have healthy snacks, like fruits and vegetables, with me," she revealed to People.

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When Lopez finally does indulge, it's not with black bean brownies trying to masquerade as the real deal. The singer's new boo, Alex Rodriguez. revealed on The View that her guilty pleasures are chocolate chip ice cream and chocolate chip cookies.

We all have our vices - avocados, chocolate, unicorn anything and everything — but Lopez doesn't indulge in any of the usuals. "I don't drink or smoke or have caffeine," she told UsWeekly.

On the rare occasion that she does indulge in coffee, it's always decaf. Keeping her complexion clear is also a big reason JLo cites for skipping caffeine and alcohol: "That really wrecks your skin as you get older."

Nothing out of the ordinary here, just hard work and listening to your body. Go JLo! See you in 30 years when you finally look 29.

Soccer star Cristiano Ronaldo is known for his impeccably muscular physique, a physique he has evidently trained hard for, through his incredibly disciplined and painstaking fitness regime.

But as they always say, abs are made in the kitchen, and Ronaldo relies on a nutritious, balanced diet to maintain his chiseled body.

Per the Sun, the 34-year-old eats little and often, enjoying up to six meals a day. Unsurprisingly, given its many health benefits, fish is a huge part of his diet.

This is the emotional moment Cristiano Ronaldo cried during a candid interview with Piers Morgan:

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According to the publication, Swordfish, tuna, and braised cod are amongst the former Manchester United star's favorite fish dishes.

In fact, Ronaldo apparently referred to fish as "magical" due to its high protein and low-fat content.

For an early-morning breakfast, the athlete will indulge in ham and cheese and low-fat yogurt. And if he doesn't have it for breakfast, Ronaldo will help himself to some avocado toast for a snack.

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A typical lunch will either be chicken and salad, or a fish dish - for instance, tuna with salad, eggs, and olives.

For dinner, Ronaldo enjoys a meal primarily made of either meat or fish. For instance, a typical dinner might be made up of braised cod, onions, thinly sliced potatoes, and scrambled eggs.

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His diet aside, Ronaldo has his home gym to thank for much of his training and those enviable abs.

He explained to Goal.com:

"In training we do a few laps of the pitch, stretching, and cardio exercises [to warm-up]. Make sure you do something similar in your training, even if it is jogging to the gym or a warm up on the treadmill or bicycle."

He added:  “We do a lot of sprinting drills in training and they can be incorporated into your workout whether you are in the gym or outdoors. Try and add it to every workout you do."

In the midst of the day-to-day pressures of modern life, maintaining a healthy physique and eating right can be something of a challenge. We are all so busy, running from meeting to meeting, spending endless hours commuting to and fro and seeing friends for a quick drink at the end of it all that by the time we get home, there's barely time to shovel a microwave meal down our throats before we hit the hay for a well earned night's rest.

But eating healthily and exercising regularly is incredibly important. Of course, no-one should feel pressured to conform to specific diets or furious workout regimens, your body is your own and what you choose to do with it is your business, but if you're looking for some hints and tips on how to get ahead, then 72-year-old Cher might be able to help.

Cher, icon that she is, revealed last year that she could still plank for five minutes - she was 71 at the time. So how has she gone about achieving such commendable levels of fitness over the years? Here's how.

She apparently sticks to a mainly vegetarian diet, telling Hello! magazine, "I don't like meat and so most of things that I like are healthy for you".

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She rarely drinks or smokes, and she doesn't take drugs;

"There are things I don't like that are unhealthy, like drugs and drinking, so I never got into them to begin with. I smoked cigarettes for a while and I'd have done drugs had I liked them, but they didn't agree with me. I'll only drink three of four times a year too."

She says she has learned what foods work - and which don't - for her;

"Dairy products are not good for us. I weaned myself from whole milk to nonfat milk — if I'm having milk at all. I think cheese is one of the worst things for the body. It doesn't digest well, and most cheeses are too high in fat and cholesterol."

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She says she has been known to binge while on film sets too, though;

"I have had some bad binges while making movies. At the end of The Witches of Eastwick, Michelle Pfeiffer, Susan Sarandon and I really went crazy. We'd go from one of our trailers to the other stuffing ourselves with Pepperidge Farm Cheddar Cheese Goldfish, M&Ms, Cokes and Hershey's Kisses," she wrote. "Then Michelle and I found out we could microwave sweet potatoes in four minutes, and that changed our entire lives. We lived on sweet potatoes, baked potatoes and Caesar salads."

So what does she focus on eating these days?

"I've been concentrating on eating the foods that Robert [Haas, her co-author] has stressed as being terrific: brown rice (not white rice), legumes — lentils, pinto, navy, lima and kidney beans—vegetables, pastas, fruit.

"Pastas give me a lot of energy, and so do fruits like bananas, papaya and nectarines, because they have a lot of sugar but it isn't refined."

She also told E! News back in 2010 that she had been learning to surf, which is extremely impressive;

"When I was young I was a tomboy. I played sports ... And I'm learning to surf right now. I like that kind of stuff, thank God."

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So often does she hit the gym?

"I exercise about five times a week because it's something I've always done and I just enjoy it," she told Hello!

Cher - whatever you're doing, it's working. 72 never looked so good!

I know you'd all be really excited to have dinner with the Royal Family, and in theory it sounds like a great time. But for me, I don't know if I could handle the pressure of sitting down to have a meal with literal queens, princes and princesses. You'd have to obey every single law in the etiquette book, watch your words, and even then there's certain foods you're straight up not allowed to eat.

But what would be on the menu at a Royal Family dinner? While only a select few will get to enjoy a meal with the Queen, Meghan Markle and the rest of the gang, the vast majority of us are going to have to make do with this list, where we'll go through the eating habits of all your favourite royals. Tally ho!

1. Meghan Markle her loves some wine

Let's start with the newest member of the Royal Family, Meghan Markle, who you may recognise from the law drama Suits. The first thing you should know is that Meghan loves a nice glass of wine. Don't we all? Before Prince Harry came along and swept her off her feet, Meghan revealed that wine was the biggest love in her life. "French fries and vino are my vices," she revealed, so you get the feeling she'd be the most fun to have food with in the Royal Family. "In the summer, though, when I'm out with my friends, it's rosé all day."

2. Meghan's also big on healthy eating

French fries aren't exactly health food I know, but when Meghan wants to stay on top of things, she stays on top of things. First thing in the morning, Meghan Markle has herself some lemon water, but it's only the start of her healthy day. As you might know, Meghan is an advocate of the vegan diet, and in her Suits days she was partial to a salad with some protein, plus a snack of apples and almond butter. Maybe a green juice if she's feeling it.

3. Camilla, the Duchess of Cornwall

According to her son Tom Parker Bowles, if you happened to have a curry with the Royal Family, Prince Charles and his wife Camilla are unlikely to be in attendance. You might have heard that Meghan Markle isn't allowed to eat garlic much any more, but Camila definitely didn't get the memo; "I like chili and spice and garlic and [Charles and Camilla] come from a generation where they don't really like chili." Bowles recently revealed at the US launch of Fortnum & Mason: The Cook Book in New York. Tom also says that Camila loves her scrambled eggs. "My mum is a very good cook, but my stepdad and my mum have a lot of very good chefs."

4. Kate Middleton is definitely more of a dinner kind of girl

Ah, Kate Middleton. We remember the days when you were the belle of this particular Royal Ball, back in 2011 when you married Prince William. Now, three children later (but you wouldn't know it by looking at her), if you were to sit down with Kate, the way you'd probably go about it by agreeing to have dinner. Kate loves her a good curry just as much as she loves cooking for other people, but if you showed up around the holidays, she may plump instead for one of those traditional family recipes.

5. Kate Middleton changed tack to shed her pregnancy weight

Shortly after giving birth to Princess Charlotte, Kate Middleton switched things up. Although she did love her home cooking, she needed to lose weight effectively, so she switched to a fruit and vegetable-based routine. This often meant ceviche, goji berries, gazpacho, watermelon salad, almond milk and tabbouleh. She also adopted a strict diet before her wedding to Prince William, however, which was more of a high-protein, low carb affair.

6. The Queen has a regular eating schedule

If you were to have breakfast with the Queen, it's going to be a pretty regimented affair: Her Majesty only likes a select few things, but when she likes something, she likes something. Let's start with breakfast, where the Queen will always start her day (always!) with a cup of tea and some biscuits. If she's looking for a big breakfast, then toast and marmalade's on the menu, along with scrambled eggs, smoked salmon, and just a little bit of grated truffle. Brown eggs only - the Queen believes they taste better, and who are we to disagree?

7. Her Majesty also has a few drinks to get her through the day

I don't know about you, but I'd imagine that all that Queenin' must be really stressful, and the Queen and I like to alleviate stress in a very similar fashion: with a couple of alcoholic beverages. She likes to have her first of the day just before lunch (while I usually wait until after work and pound as many as possible). Then, she'll have some veggies and fish for lunch. She'll have the same thing for dinner, usually with a martini to send her to bed. No carbs, though. She's got greater willpower than me, that's for sure.

8. Prince Philip is the most adventurous eater in the family

By far and away the most eccentric of the Royal Family (and therefore my favourite), you can imagine Prince Philip to have quite a few don'ts when it comes to what you can put on his plate. But in fact, in reality, he's actually very willing to try new things. But former royal chef Darren McGrady reveals that this doesn't apply when everything's organic:

"We always used to get a hamper [full of food and treats] from Harrods — a thank you gift for shopping with them. Prince Philip came into the kitchen and there were two hampers. He said, 'Oh, is this a Harrods hamper?' I said, 'No, your highness, this is a hamper the Prince of Wales brought with him.' He looked puzzled so I opened it up and I said, 'It's all organic.' And he said, 'Oh, bloody organic!' And just shook his head and walked out."

Well, then.

Well, while you may never get to have dinner with the Royal Family, with this definitive list, you'll hopefully be able to put the pieces together in your mind. That way, the dinner can be as good as your imagination allows it, free from the burdens of reality.