Jennifer Aniston's eating and fitness secrets are surprisingly doable.

Unlike most celebrities, Jennifer Aniston stays far away from social media.

For her, this is probably a positive thing — not having to deal with nasty comments from anonymous keyboard warriors, for instance, must be nice. However, Aniston’s aversion to the online world means we rarely get a glimpse into what her life looks like behind the scenes, which is a bit of a shame.

RELATED: Jennifer Aniston’s favourite hair product is, well, surprisingly gross.

Clearly the Cake star can sense our disappointment, because this week she kindly threw us an Insta-bone. For 24 glorious hours, Aniston took over the Instagram profile of Living Proof, the beauty brand she co-owns.

Her brief affair with social media taught us quite a lot about how the 46-year-old spends her down time — here are five things we learned:

She eats carbs

In most cases, celebrity 'my day on a plate' rundowns are conspicuously devoid of carbohydrates. Starlets will rave about zoodles, kale, and egg-white omelettes, and the occasional square of organic dark chocolate as a "treat". But bread? Pasta? Those guys are typically off the menu.

This is evidently not the case for Jennifer Aniston. Her debut Instagram post was of her breakfast (of course), consisting of brown toast, a poached egg, avocado and tomato. And it looks bloody delicious. (Post continues after gallery.)

She does barre

...with her dog!

Our entire office is obsessed with barre, the bendy fitness trend that fuses elements of ballet, pilates and yoga. Apparently, this is something we have in common with Aniston, who shared this photo with the caption: "A little barre work with my beauty". We're guessing her dog Sophie moved off the mat eventually, because everyone knows at-home stretches and affectionate pets just do not mix.

RELATED: Gwyneth Paltrow hated exercising every day. One piece of advice changed that.

She owns chickens

Well, this one was unexpected: Aniston and her fiance Justin Theroux have their very own chickens, and clearly a bountiful supply of eggs. No wonder the yolk on her breakfast photo was so yellow!

RELATED: There’s one ingredient the Royal Family refuses to eat.

She has a signature salad

If we ever get the chance to invite Jennifer Aniston to a barbeque, we'll ask her to bring this dish along. "My perfect salad – Bulgar, cucumbers, parsley, mint, red onion, garbanzo beans, feta cheese, & pistachios," she writes. YUM.

She's obsessed with this book

Not even celebrities are immune from the lure of 'It' novels. Right now, it seems the entire world is bailing on their social commitments to read Paula Hawkins' The Girl On The Train, and Aniston is one of them. "COULD. NOT. PUT. DOWN. Now late for dinner #obsessed," she wrote.

Been there, Jen. Many, many times.

What are you reading right now?