Kendall: Breakfast Kendall likes to start her busy days off with a big breakfast : She often has a bowl of oatmeal and avocado over eggs to tide her over for hours of back-to-back meetings and events. Dimitrios Kambouris - Getty Images
Kendall: Lunch Kendall's day doesn't allow for a leisurely midday meal, so she typically has a quick lunch of lean chicken and brown rice. James Devaney - Getty Images
Kendall: Lunch Like her big sisters, Kendall is a big fan of Health Nut salads. Her go-to salad order is a Deluxe Salad with chicken and no tomatoes. PG/Bauer-Griffin - Getty Images
Kendall: Snack For a sweet treat no matter the time of the day, Kendall goes for a tart frozen yogurt from Go Greek, she says . Photopix - Getty Images
Kendall: Snack Throughout the day, Kendall snacks on veggies like carrot sticks with hummus . Rosdiana Ciaravolo - Getty Images
Kendall: Snack One of Kendall's go-to dressing room picks for her photoshoots and fashion shows is tortilla chips and guacamole. Dimitrios Kambouris - Getty Images
Kendall: Snack Kendall also loves to snack on Justin's Classic Almond Butter packs when she's in a pre-show dressing room. Taylor Hill - Getty Images
Kendall: Mid-Afternoon Drink The model makes sure to drink a ton of water every day, but Kendall also enjoys sipping on kiwi strawberry Snapple, she says . Robino Salvatore - Getty Images
Kendall: Dinner When she has a chance to go out to dinner , Kendall likes to grab sushi at Nobu in Los Angeles with friends. She makes time to get together with her pals at least two times a week. Marc Piasecki - Getty Images
Kendall: Dinner When she's in New York City, Kendall frequently dines at Bar Pitti, but when she's on the west coast, Kendall often eats at Craig's in Los Angeles. Her favorite two orders include vegan spaghetti bolognese or margherita pizza. Alessio Botticelli - Getty Images
Kendall: Dinner When the model has time to make a home-cooked meal, she throws together some fettuccine, peas, and parmesan cheese, and seasons it with salt and pepper for a simple dinner. Other than that, she doesn't have a chance to cook much, she says . BG002/Bauer-Griffin - Getty Images
Kendall: Dessert Admittedly , Kendall wasn't big on chocolate, until she tried a Twix on a long flight, and then she was hooked. Now, it's on her list of dressing room snacks. Jim Spellman - Getty Images
Kendall: Dessert From what Kendall has posted on Instagram , she seems like quite the baker. She whipped up a batch of these cinnamon vanilla glazed cupcakes for fellow model pal Hailey Bieber. Instagram/Kendall Jenner
Kendall: Treats According to her sister Khlo, Kendall is the best buddy to grab fast food with, she says . Kendall loves a good burger and stops at In-N-Out when she's craving one. Josiah Kamau - Getty Images
Kylie: Morning Drink Kylie's morning kicks off with a celery juice each day. She posted on Instagram that she drinks 16 ounces of it every morning to load up on Vitamin C and K, then waits 30 minutes before eating her breakfast. Pascal Le Segretain - Getty Images
Kylie: Morning Drink After her juice, Kylie takes her coffee with a collagen creamer that's coconut milk-based and vanilla flavored. Josiah Kamau - Getty Images
Kylie: Breakfast Her daily breakfast doesn't vary too much from eggs, smashed avocado, and turkey bacon, to keep her protein intake up. James Devaney - Getty Images
Kylie: Mid-Morning Drink After breakfast, Kylie likes to down some Gingerade kombucha . Ricky Vigil M - Getty Images
Kylie: Lunch Like big sis Kim, Kylie often goes for a Chinese chicken salad at lunchtime . She also often orders in from Joan's On Third in Los Angeles instead of venturing out. Taylor Jewell - Getty Images
Kylie: Snack Kylie recently Instagrammed her go-to green smoothie. It contains baby kale, frozen bananas, frozen blueberries, green juice, and Dr. Shulze's superfood plus. Instagram/Kylie Jenner
Kylie: Snack Kylie keeps tons of fruit in her house to snack on, including apples, pears, and avocado. Instagram/Kylie Jenner
Kylie: Dinner In 2017, Kylie revealed that she basically eats (or could eat) the same meal every day: shrimp tacos with onion and guac. Instagram/Kylie Jenner
Kylie: Dinner Kylie posted about being obsessed with matzo balls and concocted a huge pot of matzo ball soup for her family. Pierre Suu - Getty Images
Kylie: Dinner Though she went vegan for a brief stint (and added plant-based tacos into the mix), she does love to cook burgers, Kylie says . Erik Voake - Getty Images
Kylie: Dinner Kylie and Kendall are definitely sisters: they are both pasta lovers. The makeup guru says that she cooks spaghetti often, because her mom Kris loves it so that's the first thing she learned how to make. Bauer-Griffin - Getty Images
Kylie: Dinner When Kylie orders a pizza, she's very specific about the seasonings that go on it. Her favorite toppings are pepperoni with a little bit of oregano, salt, and pepper. Gotham - Getty Images
Kylie: Sides On the side, Kylie loves to eat potatoes, in all forms. She makes everything from scalloped potatoes to candied yams to mashed potatoes. Gotham - Getty Images
Kylie: Dessert Up until last year, sister Kendall says that Kylie often ate Haagen-Dazs (also a fave of Kim's) vanilla ice cream topped with pomegranate seeds for breakfast. Kevin Mazur - Getty Images
Kylie: Midnight Snack Ex-boyfriend and father of her daughter Stormi, Travis Scott, shared that Kylie is a master peanut butter and jelly maker, and that PB&J is the perfectly satisfying snack they often enjoyed before heading to bed. Rich Fury - Getty Images