From the strict banned list to the gruelling workouts, here's what we know...
THE Victoria's Secret models have to be in top physical condition before their shows, but perfection comes at a price.
So what is the VS diet and exercise regime, and is it possible for us mere mortals? Here's what we know...
Authored by : JOSIE GRIFFITHS
The VS diet is high in good fats and protein, low in carbs - and limited to 1,300 calories-a-day.
The models are told to eat lean chicken, beef or fish with every meal, or the equivalent in eggs (around three).
Dairy and gluten are banned - as are vegetables which grow below the ground, which are harder to digest.
There's no sugar allowed, including fruit, with the exception of berries, while models have to eat two servings of fat per meal (coconut oil, avocado, butter or olive oil).
A tablespoon of oil or butter counts as one serving, as does a third of an avocado.
Following a low-carb diets push the body into a state of ketosis, where it burns fat for energy.
They can occasionally have 1/2 cup of lentils or chickpeas, or some brown rice, sweet potato or quinoa.
The angels work out first thing in the morning on an empty stomach, aside from water and coffee, and have a protein shake afterwards.
Their last meal of the day is at 6pm, and there's absolutely no alcohol allowed.
The models have to sleep for between seven and nine hours-a-night, and drink between two and four litres of water.
Dr Charles Passler, who's helped Bella Hadid, Adriana Lima and Amber Valletta get in shape - to name a few - also advocates a low-stress life for weight loss (which might be hard for a lot of us!)
Adriana Lima previously told the Telegraph she switched to an all-liquid diet for nine days before the show - and stopped drinking water entirely for 12 hours before taking to the catwalk.
It's an extreme diet, so please don't try it without speaking to a medical professional first.
A Victoria's Secret model's day on a plate:
FIRST THING: A shot of apple cider vinegar.
BREAKFAST: Half an avocado with half a grapefuit, sprinkled with cinnamon.
OR: Green smoothie.
OR: Egg white omelette with spinach and turkey.
LUNCH: Green salad with vegetables and lean protein.
SNACK: A handful of nuts or berries.
DINNER: Healthy carbs (quinoa, brown rice or sweet potato) served with lean protein and a side of steamed vegetables.
What workouts do the Victoria's Secret models do?
Speaking in a past interview, Adriana Lima said: "You work out as an athlete. All your mind, all your everything goes into it."
In the run-up to the show, the models work out up to six times-a-week, for at least an hour.
Most of them hire a trainer but, if that's a bit out of your price range, you could try one of these classes instead.
Stella Maxwell revealed she's a fan of Ashtanga yoga.
While Josephine Skriver likes weight lifting, mixing it up with cardio sessions twice-a-week.
Adriana likes skipping, boxing and weight lifting.
The girls are also said to be fans of Reformer Pilates and Ballet Barre classes, but they do get a full body massage once a week (which we could definitely get on-board with).
So models, what are you waiting for?